To find all the divisors of the number 942,809,936:
- 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 942,809,936:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
942,809,936 = 24 × 17 × 521 × 6,653
942,809,936 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 = (4 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 5 × 2 × 2 × 2 = 40
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 942,809,936
- 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
composite factor = 2
2 =
4
composite factor = 2
3 =
8
composite factor = 2
4 =
16
prime factor =
17
composite factor = 2 × 17 =
34
composite factor = 2
2 × 17 =
68
composite factor = 2
3 × 17 =
136
composite factor = 2
4 × 17 =
272
prime factor =
521
composite factor = 2 × 521 =
1,042
composite factor = 2
2 × 521 =
2,084
composite factor = 2
3 × 521 =
4,168
prime factor =
6,653
composite factor = 2
4 × 521 =
8,336
composite factor = 17 × 521 =
8,857
composite factor = 2 × 6,653 =
13,306
composite factor = 2 × 17 × 521 =
17,714
composite factor = 2
2 × 6,653 =
26,612
This list continues below...
... This list continues from above
composite factor = 2
2 × 17 × 521 =
35,428
composite factor = 2
3 × 6,653 =
53,224
composite factor = 2
3 × 17 × 521 =
70,856
composite factor = 2
4 × 6,653 =
106,448
composite factor = 17 × 6,653 =
113,101
composite factor = 2
4 × 17 × 521 =
141,712
composite factor = 2 × 17 × 6,653 =
226,202
composite factor = 2
2 × 17 × 6,653 =
452,404
composite factor = 2
3 × 17 × 6,653 =
904,808
composite factor = 2
4 × 17 × 6,653 =
1,809,616
composite factor = 521 × 6,653 =
3,466,213
composite factor = 2 × 521 × 6,653 =
6,932,426
composite factor = 2
2 × 521 × 6,653 =
13,864,852
composite factor = 2
3 × 521 × 6,653 =
27,729,704
composite factor = 2
4 × 521 × 6,653 =
55,459,408
composite factor = 17 × 521 × 6,653 =
58,925,621
composite factor = 2 × 17 × 521 × 6,653 =
117,851,242
composite factor = 2
2 × 17 × 521 × 6,653 =
235,702,484
composite factor = 2
3 × 17 × 521 × 6,653 =
471,404,968
composite factor = 2
4 × 17 × 521 × 6,653 =
942,809,936
40 factors (divisors)
What times what is 942,809,936?
What number multiplied by what number equals 942,809,936?
All the combinations of any two natural numbers whose product equals 942,809,936.
1 × 942,809,936 = 942,809,936
2 × 471,404,968 = 942,809,936
4 × 235,702,484 = 942,809,936
8 × 117,851,242 = 942,809,936
16 × 58,925,621 = 942,809,936
17 × 55,459,408 = 942,809,936
34 × 27,729,704 = 942,809,936
68 × 13,864,852 = 942,809,936
136 × 6,932,426 = 942,809,936
272 × 3,466,213 = 942,809,936
521 × 1,809,616 = 942,809,936
1,042 × 904,808 = 942,809,936
2,084 × 452,404 = 942,809,936
4,168 × 226,202 = 942,809,936
6,653 × 141,712 = 942,809,936
8,336 × 113,101 = 942,809,936
8,857 × 106,448 = 942,809,936
13,306 × 70,856 = 942,809,936
17,714 × 53,224 = 942,809,936
26,612 × 35,428 = 942,809,936
20 unique multiplications The final answer:
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