To find all the divisors of the number 875,316:
- 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 875,316:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
875,316 = 22 × 3 × 13 × 31 × 181
875,316 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) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 3 × 2 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 875,316
- 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
composite factor = 2 × 3 =
6
composite factor = 2
2 × 3 =
12
prime factor =
13
composite factor = 2 × 13 =
26
prime factor =
31
composite factor = 3 × 13 =
39
composite factor = 2
2 × 13 =
52
composite factor = 2 × 31 =
62
composite factor = 2 × 3 × 13 =
78
composite factor = 3 × 31 =
93
composite factor = 2
2 × 31 =
124
composite factor = 2
2 × 3 × 13 =
156
prime factor =
181
composite factor = 2 × 3 × 31 =
186
composite factor = 2 × 181 =
362
composite factor = 2
2 × 3 × 31 =
372
composite factor = 13 × 31 =
403
composite factor = 3 × 181 =
543
composite factor = 2
2 × 181 =
724
composite factor = 2 × 13 × 31 =
806
This list continues below...
... This list continues from above
composite factor = 2 × 3 × 181 =
1,086
composite factor = 3 × 13 × 31 =
1,209
composite factor = 2
2 × 13 × 31 =
1,612
composite factor = 2
2 × 3 × 181 =
2,172
composite factor = 13 × 181 =
2,353
composite factor = 2 × 3 × 13 × 31 =
2,418
composite factor = 2 × 13 × 181 =
4,706
composite factor = 2
2 × 3 × 13 × 31 =
4,836
composite factor = 31 × 181 =
5,611
composite factor = 3 × 13 × 181 =
7,059
composite factor = 2
2 × 13 × 181 =
9,412
composite factor = 2 × 31 × 181 =
11,222
composite factor = 2 × 3 × 13 × 181 =
14,118
composite factor = 3 × 31 × 181 =
16,833
composite factor = 2
2 × 31 × 181 =
22,444
composite factor = 2
2 × 3 × 13 × 181 =
28,236
composite factor = 2 × 3 × 31 × 181 =
33,666
composite factor = 2
2 × 3 × 31 × 181 =
67,332
composite factor = 13 × 31 × 181 =
72,943
composite factor = 2 × 13 × 31 × 181 =
145,886
composite factor = 3 × 13 × 31 × 181 =
218,829
composite factor = 2
2 × 13 × 31 × 181 =
291,772
composite factor = 2 × 3 × 13 × 31 × 181 =
437,658
composite factor = 2
2 × 3 × 13 × 31 × 181 =
875,316
48 factors (divisors)
What times what is 875,316?
What number multiplied by what number equals 875,316?
All the combinations of any two natural numbers whose product equals 875,316.
1 × 875,316 = 875,316
2 × 437,658 = 875,316
3 × 291,772 = 875,316
4 × 218,829 = 875,316
6 × 145,886 = 875,316
12 × 72,943 = 875,316
13 × 67,332 = 875,316
26 × 33,666 = 875,316
31 × 28,236 = 875,316
39 × 22,444 = 875,316
52 × 16,833 = 875,316
62 × 14,118 = 875,316
78 × 11,222 = 875,316
93 × 9,412 = 875,316
124 × 7,059 = 875,316
156 × 5,611 = 875,316
181 × 4,836 = 875,316
186 × 4,706 = 875,316
362 × 2,418 = 875,316
372 × 2,353 = 875,316
403 × 2,172 = 875,316
543 × 1,612 = 875,316
724 × 1,209 = 875,316
806 × 1,086 = 875,316
24 unique multiplications The final answer:
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