To find all the divisors of the number 579,502:
- 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 579,502:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
579,502 = 2 × 7 × 11 × 53 × 71
579,502 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 = (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 2 × 2 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 579,502
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- 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 =
7
prime factor =
11
composite factor = 2 × 7 =
14
composite factor = 2 × 11 =
22
prime factor =
53
prime factor =
71
composite factor = 7 × 11 =
77
composite factor = 2 × 53 =
106
composite factor = 2 × 71 =
142
composite factor = 2 × 7 × 11 =
154
composite factor = 7 × 53 =
371
composite factor = 7 × 71 =
497
composite factor = 11 × 53 =
583
composite factor = 2 × 7 × 53 =
742
This list continues below...
... This list continues from above
composite factor = 11 × 71 =
781
composite factor = 2 × 7 × 71 =
994
composite factor = 2 × 11 × 53 =
1,166
composite factor = 2 × 11 × 71 =
1,562
composite factor = 53 × 71 =
3,763
composite factor = 7 × 11 × 53 =
4,081
composite factor = 7 × 11 × 71 =
5,467
composite factor = 2 × 53 × 71 =
7,526
composite factor = 2 × 7 × 11 × 53 =
8,162
composite factor = 2 × 7 × 11 × 71 =
10,934
composite factor = 7 × 53 × 71 =
26,341
composite factor = 11 × 53 × 71 =
41,393
composite factor = 2 × 7 × 53 × 71 =
52,682
composite factor = 2 × 11 × 53 × 71 =
82,786
composite factor = 7 × 11 × 53 × 71 =
289,751
composite factor = 2 × 7 × 11 × 53 × 71 =
579,502
32 factors (divisors)
What times what is 579,502?
What number multiplied by what number equals 579,502?
All the combinations of any two natural numbers whose product equals 579,502.
1 × 579,502 = 579,502
2 × 289,751 = 579,502
7 × 82,786 = 579,502
11 × 52,682 = 579,502
14 × 41,393 = 579,502
22 × 26,341 = 579,502
53 × 10,934 = 579,502
71 × 8,162 = 579,502
77 × 7,526 = 579,502
106 × 5,467 = 579,502
142 × 4,081 = 579,502
154 × 3,763 = 579,502
371 × 1,562 = 579,502
497 × 1,166 = 579,502
583 × 994 = 579,502
742 × 781 = 579,502
16 unique multiplications The final answer:
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