To find all the divisors of the number 752,492:
- 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 752,492:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
752,492 = 22 × 13 × 29 × 499
752,492 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) = 3 × 2 × 2 × 2 = 24
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 752,492
- 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
composite factor = 2
2 =
4
prime factor =
13
composite factor = 2 × 13 =
26
prime factor =
29
composite factor = 2
2 × 13 =
52
composite factor = 2 × 29 =
58
composite factor = 2
2 × 29 =
116
composite factor = 13 × 29 =
377
prime factor =
499
composite factor = 2 × 13 × 29 =
754
This list continues below...
... This list continues from above
composite factor = 2 × 499 =
998
composite factor = 2
2 × 13 × 29 =
1,508
composite factor = 2
2 × 499 =
1,996
composite factor = 13 × 499 =
6,487
composite factor = 2 × 13 × 499 =
12,974
composite factor = 29 × 499 =
14,471
composite factor = 2
2 × 13 × 499 =
25,948
composite factor = 2 × 29 × 499 =
28,942
composite factor = 2
2 × 29 × 499 =
57,884
composite factor = 13 × 29 × 499 =
188,123
composite factor = 2 × 13 × 29 × 499 =
376,246
composite factor = 2
2 × 13 × 29 × 499 =
752,492
24 factors (divisors)
What times what is 752,492?
What number multiplied by what number equals 752,492?
All the combinations of any two natural numbers whose product equals 752,492.
1 × 752,492 = 752,492
2 × 376,246 = 752,492
4 × 188,123 = 752,492
13 × 57,884 = 752,492
26 × 28,942 = 752,492
29 × 25,948 = 752,492
52 × 14,471 = 752,492
58 × 12,974 = 752,492
116 × 6,487 = 752,492
377 × 1,996 = 752,492
499 × 1,508 = 752,492
754 × 998 = 752,492
12 unique multiplications The final answer:
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