To find all the divisors of the number 322,920:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 322,920:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
322,920 = 23 × 33 × 5 × 13 × 23
322,920 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (3 + 1) × (3 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 4 × 4 × 2 × 2 × 2 = 128
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 322,920
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
2
prime factor =
3
composite factor = 2
2 =
4
prime factor =
5
composite factor = 2 × 3 =
6
composite factor = 2
3 =
8
composite factor = 3
2 =
9
composite factor = 2 × 5 =
10
composite factor = 2
2 × 3 =
12
prime factor =
13
composite factor = 3 × 5 =
15
composite factor = 2 × 3
2 =
18
composite factor = 2
2 × 5 =
20
prime factor =
23
composite factor = 2
3 × 3 =
24
composite factor = 2 × 13 =
26
composite factor = 3
3 =
27
composite factor = 2 × 3 × 5 =
30
composite factor = 2
2 × 3
2 =
36
composite factor = 3 × 13 =
39
composite factor = 2
3 × 5 =
40
composite factor = 3
2 × 5 =
45
composite factor = 2 × 23 =
46
composite factor = 2
2 × 13 =
52
composite factor = 2 × 3
3 =
54
composite factor = 2
2 × 3 × 5 =
60
composite factor = 5 × 13 =
65
composite factor = 3 × 23 =
69
composite factor = 2
3 × 3
2 =
72
composite factor = 2 × 3 × 13 =
78
composite factor = 2 × 3
2 × 5 =
90
composite factor = 2
2 × 23 =
92
composite factor = 2
3 × 13 =
104
composite factor = 2
2 × 3
3 =
108
composite factor = 5 × 23 =
115
composite factor = 3
2 × 13 =
117
composite factor = 2
3 × 3 × 5 =
120
composite factor = 2 × 5 × 13 =
130
composite factor = 3
3 × 5 =
135
composite factor = 2 × 3 × 23 =
138
composite factor = 2
2 × 3 × 13 =
156
composite factor = 2
2 × 3
2 × 5 =
180
composite factor = 2
3 × 23 =
184
composite factor = 3 × 5 × 13 =
195
composite factor = 3
2 × 23 =
207
composite factor = 2
3 × 3
3 =
216
composite factor = 2 × 5 × 23 =
230
composite factor = 2 × 3
2 × 13 =
234
composite factor = 2
2 × 5 × 13 =
260
composite factor = 2 × 3
3 × 5 =
270
composite factor = 2
2 × 3 × 23 =
276
composite factor = 13 × 23 =
299
composite factor = 2
3 × 3 × 13 =
312
composite factor = 3 × 5 × 23 =
345
composite factor = 3
3 × 13 =
351
composite factor = 2
3 × 3
2 × 5 =
360
composite factor = 2 × 3 × 5 × 13 =
390
composite factor = 2 × 3
2 × 23 =
414
composite factor = 2
2 × 5 × 23 =
460
composite factor = 2
2 × 3
2 × 13 =
468
composite factor = 2
3 × 5 × 13 =
520
composite factor = 2
2 × 3
3 × 5 =
540
composite factor = 2
3 × 3 × 23 =
552
This list continues below...
... This list continues from above
composite factor = 3
2 × 5 × 13 =
585
composite factor = 2 × 13 × 23 =
598
composite factor = 3
3 × 23 =
621
composite factor = 2 × 3 × 5 × 23 =
690
composite factor = 2 × 3
3 × 13 =
702
composite factor = 2
2 × 3 × 5 × 13 =
780
composite factor = 2
2 × 3
2 × 23 =
828
composite factor = 3 × 13 × 23 =
897
composite factor = 2
3 × 5 × 23 =
920
composite factor = 2
3 × 3
2 × 13 =
936
composite factor = 3
2 × 5 × 23 =
1,035
composite factor = 2
3 × 3
3 × 5 =
1,080
composite factor = 2 × 3
2 × 5 × 13 =
1,170
composite factor = 2
2 × 13 × 23 =
1,196
composite factor = 2 × 3
3 × 23 =
1,242
composite factor = 2
2 × 3 × 5 × 23 =
1,380
composite factor = 2
2 × 3
3 × 13 =
1,404
composite factor = 5 × 13 × 23 =
1,495
composite factor = 2
3 × 3 × 5 × 13 =
1,560
composite factor = 2
3 × 3
2 × 23 =
1,656
composite factor = 3
3 × 5 × 13 =
1,755
composite factor = 2 × 3 × 13 × 23 =
1,794
composite factor = 2 × 3
2 × 5 × 23 =
2,070
composite factor = 2
2 × 3
2 × 5 × 13 =
2,340
composite factor = 2
3 × 13 × 23 =
2,392
composite factor = 2
2 × 3
3 × 23 =
2,484
composite factor = 3
2 × 13 × 23 =
2,691
composite factor = 2
3 × 3 × 5 × 23 =
2,760
composite factor = 2
3 × 3
3 × 13 =
2,808
composite factor = 2 × 5 × 13 × 23 =
2,990
composite factor = 3
3 × 5 × 23 =
3,105
composite factor = 2 × 3
3 × 5 × 13 =
3,510
composite factor = 2
2 × 3 × 13 × 23 =
3,588
composite factor = 2
2 × 3
2 × 5 × 23 =
4,140
composite factor = 3 × 5 × 13 × 23 =
4,485
composite factor = 2
3 × 3
2 × 5 × 13 =
4,680
composite factor = 2
3 × 3
3 × 23 =
4,968
composite factor = 2 × 3
2 × 13 × 23 =
5,382
composite factor = 2
2 × 5 × 13 × 23 =
5,980
composite factor = 2 × 3
3 × 5 × 23 =
6,210
composite factor = 2
2 × 3
3 × 5 × 13 =
7,020
composite factor = 2
3 × 3 × 13 × 23 =
7,176
composite factor = 3
3 × 13 × 23 =
8,073
composite factor = 2
3 × 3
2 × 5 × 23 =
8,280
composite factor = 2 × 3 × 5 × 13 × 23 =
8,970
composite factor = 2
2 × 3
2 × 13 × 23 =
10,764
composite factor = 2
3 × 5 × 13 × 23 =
11,960
composite factor = 2
2 × 3
3 × 5 × 23 =
12,420
composite factor = 3
2 × 5 × 13 × 23 =
13,455
composite factor = 2
3 × 3
3 × 5 × 13 =
14,040
composite factor = 2 × 3
3 × 13 × 23 =
16,146
composite factor = 2
2 × 3 × 5 × 13 × 23 =
17,940
composite factor = 2
3 × 3
2 × 13 × 23 =
21,528
composite factor = 2
3 × 3
3 × 5 × 23 =
24,840
composite factor = 2 × 3
2 × 5 × 13 × 23 =
26,910
composite factor = 2
2 × 3
3 × 13 × 23 =
32,292
composite factor = 2
3 × 3 × 5 × 13 × 23 =
35,880
composite factor = 3
3 × 5 × 13 × 23 =
40,365
composite factor = 2
2 × 3
2 × 5 × 13 × 23 =
53,820
composite factor = 2
3 × 3
3 × 13 × 23 =
64,584
composite factor = 2 × 3
3 × 5 × 13 × 23 =
80,730
composite factor = 2
3 × 3
2 × 5 × 13 × 23 =
107,640
composite factor = 2
2 × 3
3 × 5 × 13 × 23 =
161,460
composite factor = 2
3 × 3
3 × 5 × 13 × 23 =
322,920
128 factors (divisors)
What times what is 322,920?
What number multiplied by what number equals 322,920?
All the combinations of any two natural numbers whose product equals 322,920.
1 × 322,920 = 322,920
2 × 161,460 = 322,920
3 × 107,640 = 322,920
4 × 80,730 = 322,920
5 × 64,584 = 322,920
6 × 53,820 = 322,920
8 × 40,365 = 322,920
9 × 35,880 = 322,920
10 × 32,292 = 322,920
12 × 26,910 = 322,920
13 × 24,840 = 322,920
15 × 21,528 = 322,920
18 × 17,940 = 322,920
20 × 16,146 = 322,920
23 × 14,040 = 322,920
24 × 13,455 = 322,920
26 × 12,420 = 322,920
27 × 11,960 = 322,920
30 × 10,764 = 322,920
36 × 8,970 = 322,920
39 × 8,280 = 322,920
40 × 8,073 = 322,920
45 × 7,176 = 322,920
46 × 7,020 = 322,920
52 × 6,210 = 322,920
54 × 5,980 = 322,920
60 × 5,382 = 322,920
65 × 4,968 = 322,920
69 × 4,680 = 322,920
72 × 4,485 = 322,920
78 × 4,140 = 322,920
90 × 3,588 = 322,920
92 × 3,510 = 322,920
104 × 3,105 = 322,920
108 × 2,990 = 322,920
115 × 2,808 = 322,920
117 × 2,760 = 322,920
120 × 2,691 = 322,920
130 × 2,484 = 322,920
135 × 2,392 = 322,920
138 × 2,340 = 322,920
156 × 2,070 = 322,920
180 × 1,794 = 322,920
184 × 1,755 = 322,920
195 × 1,656 = 322,920
207 × 1,560 = 322,920
216 × 1,495 = 322,920
230 × 1,404 = 322,920
234 × 1,380 = 322,920
260 × 1,242 = 322,920
270 × 1,196 = 322,920
276 × 1,170 = 322,920
299 × 1,080 = 322,920
312 × 1,035 = 322,920
345 × 936 = 322,920
351 × 920 = 322,920
360 × 897 = 322,920
390 × 828 = 322,920
414 × 780 = 322,920
460 × 702 = 322,920
468 × 690 = 322,920
520 × 621 = 322,920
540 × 598 = 322,920
552 × 585 = 322,920
64 unique multiplications The final answer:
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