To find all the divisors of the number 269,100:
- 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 269,100:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
269,100 = 22 × 32 × 52 × 13 × 23
269,100 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 = (2 + 1) × (2 + 1) × (2 + 1) × (1 + 1) × (1 + 1) = 3 × 3 × 3 × 2 × 2 = 108
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 269,100
- 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 = 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 = 5
2 =
25
composite factor = 2 × 13 =
26
composite factor = 2 × 3 × 5 =
30
composite factor = 2
2 × 3
2 =
36
composite factor = 3 × 13 =
39
composite factor = 3
2 × 5 =
45
composite factor = 2 × 23 =
46
composite factor = 2 × 5
2 =
50
composite factor = 2
2 × 13 =
52
composite factor = 2
2 × 3 × 5 =
60
composite factor = 5 × 13 =
65
composite factor = 3 × 23 =
69
composite factor = 3 × 5
2 =
75
composite factor = 2 × 3 × 13 =
78
composite factor = 2 × 3
2 × 5 =
90
composite factor = 2
2 × 23 =
92
composite factor = 2
2 × 5
2 =
100
composite factor = 5 × 23 =
115
composite factor = 3
2 × 13 =
117
composite factor = 2 × 5 × 13 =
130
composite factor = 2 × 3 × 23 =
138
composite factor = 2 × 3 × 5
2 =
150
composite factor = 2
2 × 3 × 13 =
156
composite factor = 2
2 × 3
2 × 5 =
180
composite factor = 3 × 5 × 13 =
195
composite factor = 3
2 × 23 =
207
composite factor = 3
2 × 5
2 =
225
composite factor = 2 × 5 × 23 =
230
composite factor = 2 × 3
2 × 13 =
234
composite factor = 2
2 × 5 × 13 =
260
composite factor = 2
2 × 3 × 23 =
276
composite factor = 13 × 23 =
299
composite factor = 2
2 × 3 × 5
2 =
300
composite factor = 5
2 × 13 =
325
composite factor = 3 × 5 × 23 =
345
composite factor = 2 × 3 × 5 × 13 =
390
composite factor = 2 × 3
2 × 23 =
414
composite factor = 2 × 3
2 × 5
2 =
450
composite factor = 2
2 × 5 × 23 =
460
composite factor = 2
2 × 3
2 × 13 =
468
This list continues below...
... This list continues from above
composite factor = 5
2 × 23 =
575
composite factor = 3
2 × 5 × 13 =
585
composite factor = 2 × 13 × 23 =
598
composite factor = 2 × 5
2 × 13 =
650
composite factor = 2 × 3 × 5 × 23 =
690
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
2 × 3
2 × 5
2 =
900
composite factor = 3 × 5
2 × 13 =
975
composite factor = 3
2 × 5 × 23 =
1,035
composite factor = 2 × 5
2 × 23 =
1,150
composite factor = 2 × 3
2 × 5 × 13 =
1,170
composite factor = 2
2 × 13 × 23 =
1,196
composite factor = 2
2 × 5
2 × 13 =
1,300
composite factor = 2
2 × 3 × 5 × 23 =
1,380
composite factor = 5 × 13 × 23 =
1,495
composite factor = 3 × 5
2 × 23 =
1,725
composite factor = 2 × 3 × 13 × 23 =
1,794
composite factor = 2 × 3 × 5
2 × 13 =
1,950
composite factor = 2 × 3
2 × 5 × 23 =
2,070
composite factor = 2
2 × 5
2 × 23 =
2,300
composite factor = 2
2 × 3
2 × 5 × 13 =
2,340
composite factor = 3
2 × 13 × 23 =
2,691
composite factor = 3
2 × 5
2 × 13 =
2,925
composite factor = 2 × 5 × 13 × 23 =
2,990
composite factor = 2 × 3 × 5
2 × 23 =
3,450
composite factor = 2
2 × 3 × 13 × 23 =
3,588
composite factor = 2
2 × 3 × 5
2 × 13 =
3,900
composite factor = 2
2 × 3
2 × 5 × 23 =
4,140
composite factor = 3 × 5 × 13 × 23 =
4,485
composite factor = 3
2 × 5
2 × 23 =
5,175
composite factor = 2 × 3
2 × 13 × 23 =
5,382
composite factor = 2 × 3
2 × 5
2 × 13 =
5,850
composite factor = 2
2 × 5 × 13 × 23 =
5,980
composite factor = 2
2 × 3 × 5
2 × 23 =
6,900
composite factor = 5
2 × 13 × 23 =
7,475
composite factor = 2 × 3 × 5 × 13 × 23 =
8,970
composite factor = 2 × 3
2 × 5
2 × 23 =
10,350
composite factor = 2
2 × 3
2 × 13 × 23 =
10,764
composite factor = 2
2 × 3
2 × 5
2 × 13 =
11,700
composite factor = 3
2 × 5 × 13 × 23 =
13,455
composite factor = 2 × 5
2 × 13 × 23 =
14,950
composite factor = 2
2 × 3 × 5 × 13 × 23 =
17,940
composite factor = 2
2 × 3
2 × 5
2 × 23 =
20,700
composite factor = 3 × 5
2 × 13 × 23 =
22,425
composite factor = 2 × 3
2 × 5 × 13 × 23 =
26,910
composite factor = 2
2 × 5
2 × 13 × 23 =
29,900
composite factor = 2 × 3 × 5
2 × 13 × 23 =
44,850
composite factor = 2
2 × 3
2 × 5 × 13 × 23 =
53,820
composite factor = 3
2 × 5
2 × 13 × 23 =
67,275
composite factor = 2
2 × 3 × 5
2 × 13 × 23 =
89,700
composite factor = 2 × 3
2 × 5
2 × 13 × 23 =
134,550
composite factor = 2
2 × 3
2 × 5
2 × 13 × 23 =
269,100
108 factors (divisors)
What times what is 269,100?
What number multiplied by what number equals 269,100?
All the combinations of any two natural numbers whose product equals 269,100.
1 × 269,100 = 269,100
2 × 134,550 = 269,100
3 × 89,700 = 269,100
4 × 67,275 = 269,100
5 × 53,820 = 269,100
6 × 44,850 = 269,100
9 × 29,900 = 269,100
10 × 26,910 = 269,100
12 × 22,425 = 269,100
13 × 20,700 = 269,100
15 × 17,940 = 269,100
18 × 14,950 = 269,100
20 × 13,455 = 269,100
23 × 11,700 = 269,100
25 × 10,764 = 269,100
26 × 10,350 = 269,100
30 × 8,970 = 269,100
36 × 7,475 = 269,100
39 × 6,900 = 269,100
45 × 5,980 = 269,100
46 × 5,850 = 269,100
50 × 5,382 = 269,100
52 × 5,175 = 269,100
60 × 4,485 = 269,100
65 × 4,140 = 269,100
69 × 3,900 = 269,100
75 × 3,588 = 269,100
78 × 3,450 = 269,100
90 × 2,990 = 269,100
92 × 2,925 = 269,100
100 × 2,691 = 269,100
115 × 2,340 = 269,100
117 × 2,300 = 269,100
130 × 2,070 = 269,100
138 × 1,950 = 269,100
150 × 1,794 = 269,100
156 × 1,725 = 269,100
180 × 1,495 = 269,100
195 × 1,380 = 269,100
207 × 1,300 = 269,100
225 × 1,196 = 269,100
230 × 1,170 = 269,100
234 × 1,150 = 269,100
260 × 1,035 = 269,100
276 × 975 = 269,100
299 × 900 = 269,100
300 × 897 = 269,100
325 × 828 = 269,100
345 × 780 = 269,100
390 × 690 = 269,100
414 × 650 = 269,100
450 × 598 = 269,100
460 × 585 = 269,100
468 × 575 = 269,100
54 unique multiplications The final answer:
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