To find all the divisors of the number 29,688,936:
- 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 29,688,936:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
29,688,936 = 23 × 3 × 17 × 72,767
29,688,936 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) × (1 + 1) × (1 + 1) × (1 + 1) = 4 × 2 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 29,688,936
- 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
3 =
8
composite factor = 2
2 × 3 =
12
prime factor =
17
composite factor = 2
3 × 3 =
24
composite factor = 2 × 17 =
34
composite factor = 3 × 17 =
51
composite factor = 2
2 × 17 =
68
composite factor = 2 × 3 × 17 =
102
composite factor = 2
3 × 17 =
136
composite factor = 2
2 × 3 × 17 =
204
composite factor = 2
3 × 3 × 17 =
408
This list continues below...
... This list continues from above
prime factor =
72,767
composite factor = 2 × 72,767 =
145,534
composite factor = 3 × 72,767 =
218,301
composite factor = 2
2 × 72,767 =
291,068
composite factor = 2 × 3 × 72,767 =
436,602
composite factor = 2
3 × 72,767 =
582,136
composite factor = 2
2 × 3 × 72,767 =
873,204
composite factor = 17 × 72,767 =
1,237,039
composite factor = 2
3 × 3 × 72,767 =
1,746,408
composite factor = 2 × 17 × 72,767 =
2,474,078
composite factor = 3 × 17 × 72,767 =
3,711,117
composite factor = 2
2 × 17 × 72,767 =
4,948,156
composite factor = 2 × 3 × 17 × 72,767 =
7,422,234
composite factor = 2
3 × 17 × 72,767 =
9,896,312
composite factor = 2
2 × 3 × 17 × 72,767 =
14,844,468
composite factor = 2
3 × 3 × 17 × 72,767 =
29,688,936
32 factors (divisors)
What times what is 29,688,936?
What number multiplied by what number equals 29,688,936?
All the combinations of any two natural numbers whose product equals 29,688,936.
1 × 29,688,936 = 29,688,936
2 × 14,844,468 = 29,688,936
3 × 9,896,312 = 29,688,936
4 × 7,422,234 = 29,688,936
6 × 4,948,156 = 29,688,936
8 × 3,711,117 = 29,688,936
12 × 2,474,078 = 29,688,936
17 × 1,746,408 = 29,688,936
24 × 1,237,039 = 29,688,936
34 × 873,204 = 29,688,936
51 × 582,136 = 29,688,936
68 × 436,602 = 29,688,936
102 × 291,068 = 29,688,936
136 × 218,301 = 29,688,936
204 × 145,534 = 29,688,936
408 × 72,767 = 29,688,936
16 unique multiplications The final answer:
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