To find all the divisors of the number 362,520:
- 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 362,520:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
362,520 = 23 × 32 × 5 × 19 × 53
362,520 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) × (2 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 4 × 3 × 2 × 2 × 2 = 96
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 362,520
- 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
composite factor = 3 × 5 =
15
composite factor = 2 × 3
2 =
18
prime factor =
19
composite factor = 2
2 × 5 =
20
composite factor = 2
3 × 3 =
24
composite factor = 2 × 3 × 5 =
30
composite factor = 2
2 × 3
2 =
36
composite factor = 2 × 19 =
38
composite factor = 2
3 × 5 =
40
composite factor = 3
2 × 5 =
45
prime factor =
53
composite factor = 3 × 19 =
57
composite factor = 2
2 × 3 × 5 =
60
composite factor = 2
3 × 3
2 =
72
composite factor = 2
2 × 19 =
76
composite factor = 2 × 3
2 × 5 =
90
composite factor = 5 × 19 =
95
composite factor = 2 × 53 =
106
composite factor = 2 × 3 × 19 =
114
composite factor = 2
3 × 3 × 5 =
120
composite factor = 2
3 × 19 =
152
composite factor = 3 × 53 =
159
composite factor = 3
2 × 19 =
171
composite factor = 2
2 × 3
2 × 5 =
180
composite factor = 2 × 5 × 19 =
190
composite factor = 2
2 × 53 =
212
composite factor = 2
2 × 3 × 19 =
228
composite factor = 5 × 53 =
265
composite factor = 3 × 5 × 19 =
285
composite factor = 2 × 3 × 53 =
318
composite factor = 2 × 3
2 × 19 =
342
composite factor = 2
3 × 3
2 × 5 =
360
composite factor = 2
2 × 5 × 19 =
380
composite factor = 2
3 × 53 =
424
composite factor = 2
3 × 3 × 19 =
456
composite factor = 3
2 × 53 =
477
composite factor = 2 × 5 × 53 =
530
composite factor = 2 × 3 × 5 × 19 =
570
This list continues below...
... This list continues from above
composite factor = 2
2 × 3 × 53 =
636
composite factor = 2
2 × 3
2 × 19 =
684
composite factor = 2
3 × 5 × 19 =
760
composite factor = 3 × 5 × 53 =
795
composite factor = 3
2 × 5 × 19 =
855
composite factor = 2 × 3
2 × 53 =
954
composite factor = 19 × 53 =
1,007
composite factor = 2
2 × 5 × 53 =
1,060
composite factor = 2
2 × 3 × 5 × 19 =
1,140
composite factor = 2
3 × 3 × 53 =
1,272
composite factor = 2
3 × 3
2 × 19 =
1,368
composite factor = 2 × 3 × 5 × 53 =
1,590
composite factor = 2 × 3
2 × 5 × 19 =
1,710
composite factor = 2
2 × 3
2 × 53 =
1,908
composite factor = 2 × 19 × 53 =
2,014
composite factor = 2
3 × 5 × 53 =
2,120
composite factor = 2
3 × 3 × 5 × 19 =
2,280
composite factor = 3
2 × 5 × 53 =
2,385
composite factor = 3 × 19 × 53 =
3,021
composite factor = 2
2 × 3 × 5 × 53 =
3,180
composite factor = 2
2 × 3
2 × 5 × 19 =
3,420
composite factor = 2
3 × 3
2 × 53 =
3,816
composite factor = 2
2 × 19 × 53 =
4,028
composite factor = 2 × 3
2 × 5 × 53 =
4,770
composite factor = 5 × 19 × 53 =
5,035
composite factor = 2 × 3 × 19 × 53 =
6,042
composite factor = 2
3 × 3 × 5 × 53 =
6,360
composite factor = 2
3 × 3
2 × 5 × 19 =
6,840
composite factor = 2
3 × 19 × 53 =
8,056
composite factor = 3
2 × 19 × 53 =
9,063
composite factor = 2
2 × 3
2 × 5 × 53 =
9,540
composite factor = 2 × 5 × 19 × 53 =
10,070
composite factor = 2
2 × 3 × 19 × 53 =
12,084
composite factor = 3 × 5 × 19 × 53 =
15,105
composite factor = 2 × 3
2 × 19 × 53 =
18,126
composite factor = 2
3 × 3
2 × 5 × 53 =
19,080
composite factor = 2
2 × 5 × 19 × 53 =
20,140
composite factor = 2
3 × 3 × 19 × 53 =
24,168
composite factor = 2 × 3 × 5 × 19 × 53 =
30,210
composite factor = 2
2 × 3
2 × 19 × 53 =
36,252
composite factor = 2
3 × 5 × 19 × 53 =
40,280
composite factor = 3
2 × 5 × 19 × 53 =
45,315
composite factor = 2
2 × 3 × 5 × 19 × 53 =
60,420
composite factor = 2
3 × 3
2 × 19 × 53 =
72,504
composite factor = 2 × 3
2 × 5 × 19 × 53 =
90,630
composite factor = 2
3 × 3 × 5 × 19 × 53 =
120,840
composite factor = 2
2 × 3
2 × 5 × 19 × 53 =
181,260
composite factor = 2
3 × 3
2 × 5 × 19 × 53 =
362,520
96 factors (divisors)
What times what is 362,520?
What number multiplied by what number equals 362,520?
All the combinations of any two natural numbers whose product equals 362,520.
1 × 362,520 = 362,520
2 × 181,260 = 362,520
3 × 120,840 = 362,520
4 × 90,630 = 362,520
5 × 72,504 = 362,520
6 × 60,420 = 362,520
8 × 45,315 = 362,520
9 × 40,280 = 362,520
10 × 36,252 = 362,520
12 × 30,210 = 362,520
15 × 24,168 = 362,520
18 × 20,140 = 362,520
19 × 19,080 = 362,520
20 × 18,126 = 362,520
24 × 15,105 = 362,520
30 × 12,084 = 362,520
36 × 10,070 = 362,520
38 × 9,540 = 362,520
40 × 9,063 = 362,520
45 × 8,056 = 362,520
53 × 6,840 = 362,520
57 × 6,360 = 362,520
60 × 6,042 = 362,520
72 × 5,035 = 362,520
76 × 4,770 = 362,520
90 × 4,028 = 362,520
95 × 3,816 = 362,520
106 × 3,420 = 362,520
114 × 3,180 = 362,520
120 × 3,021 = 362,520
152 × 2,385 = 362,520
159 × 2,280 = 362,520
171 × 2,120 = 362,520
180 × 2,014 = 362,520
190 × 1,908 = 362,520
212 × 1,710 = 362,520
228 × 1,590 = 362,520
265 × 1,368 = 362,520
285 × 1,272 = 362,520
318 × 1,140 = 362,520
342 × 1,060 = 362,520
360 × 1,007 = 362,520
380 × 954 = 362,520
424 × 855 = 362,520
456 × 795 = 362,520
477 × 760 = 362,520
530 × 684 = 362,520
570 × 636 = 362,520
48 unique multiplications The final answer:
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