To find all the divisors of the number 732,435:
- 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 732,435:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
732,435 = 3 × 5 × 11 × 23 × 193
732,435 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 732,435
- 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 =
3
prime factor =
5
prime factor =
11
composite factor = 3 × 5 =
15
prime factor =
23
composite factor = 3 × 11 =
33
composite factor = 5 × 11 =
55
composite factor = 3 × 23 =
69
composite factor = 5 × 23 =
115
composite factor = 3 × 5 × 11 =
165
prime factor =
193
composite factor = 11 × 23 =
253
composite factor = 3 × 5 × 23 =
345
composite factor = 3 × 193 =
579
composite factor = 3 × 11 × 23 =
759
This list continues below...
... This list continues from above
composite factor = 5 × 193 =
965
composite factor = 5 × 11 × 23 =
1,265
composite factor = 11 × 193 =
2,123
composite factor = 3 × 5 × 193 =
2,895
composite factor = 3 × 5 × 11 × 23 =
3,795
composite factor = 23 × 193 =
4,439
composite factor = 3 × 11 × 193 =
6,369
composite factor = 5 × 11 × 193 =
10,615
composite factor = 3 × 23 × 193 =
13,317
composite factor = 5 × 23 × 193 =
22,195
composite factor = 3 × 5 × 11 × 193 =
31,845
composite factor = 11 × 23 × 193 =
48,829
composite factor = 3 × 5 × 23 × 193 =
66,585
composite factor = 3 × 11 × 23 × 193 =
146,487
composite factor = 5 × 11 × 23 × 193 =
244,145
composite factor = 3 × 5 × 11 × 23 × 193 =
732,435
32 factors (divisors)
What times what is 732,435?
What number multiplied by what number equals 732,435?
All the combinations of any two natural numbers whose product equals 732,435.
1 × 732,435 = 732,435
3 × 244,145 = 732,435
5 × 146,487 = 732,435
11 × 66,585 = 732,435
15 × 48,829 = 732,435
23 × 31,845 = 732,435
33 × 22,195 = 732,435
55 × 13,317 = 732,435
69 × 10,615 = 732,435
115 × 6,369 = 732,435
165 × 4,439 = 732,435
193 × 3,795 = 732,435
253 × 2,895 = 732,435
345 × 2,123 = 732,435
579 × 1,265 = 732,435
759 × 965 = 732,435
16 unique multiplications The final answer:
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