To find all the divisors of the number 36,236,648:
- 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 36,236,648:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
36,236,648 = 23 × 7 × 19 × 34,057
36,236,648 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 36,236,648
- 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 =
7
composite factor = 2
3 =
8
composite factor = 2 × 7 =
14
prime factor =
19
composite factor = 2
2 × 7 =
28
composite factor = 2 × 19 =
38
composite factor = 2
3 × 7 =
56
composite factor = 2
2 × 19 =
76
composite factor = 7 × 19 =
133
composite factor = 2
3 × 19 =
152
composite factor = 2 × 7 × 19 =
266
composite factor = 2
2 × 7 × 19 =
532
composite factor = 2
3 × 7 × 19 =
1,064
This list continues below...
... This list continues from above
prime factor =
34,057
composite factor = 2 × 34,057 =
68,114
composite factor = 2
2 × 34,057 =
136,228
composite factor = 7 × 34,057 =
238,399
composite factor = 2
3 × 34,057 =
272,456
composite factor = 2 × 7 × 34,057 =
476,798
composite factor = 19 × 34,057 =
647,083
composite factor = 2
2 × 7 × 34,057 =
953,596
composite factor = 2 × 19 × 34,057 =
1,294,166
composite factor = 2
3 × 7 × 34,057 =
1,907,192
composite factor = 2
2 × 19 × 34,057 =
2,588,332
composite factor = 7 × 19 × 34,057 =
4,529,581
composite factor = 2
3 × 19 × 34,057 =
5,176,664
composite factor = 2 × 7 × 19 × 34,057 =
9,059,162
composite factor = 2
2 × 7 × 19 × 34,057 =
18,118,324
composite factor = 2
3 × 7 × 19 × 34,057 =
36,236,648
32 factors (divisors)
What times what is 36,236,648?
What number multiplied by what number equals 36,236,648?
All the combinations of any two natural numbers whose product equals 36,236,648.
1 × 36,236,648 = 36,236,648
2 × 18,118,324 = 36,236,648
4 × 9,059,162 = 36,236,648
7 × 5,176,664 = 36,236,648
8 × 4,529,581 = 36,236,648
14 × 2,588,332 = 36,236,648
19 × 1,907,192 = 36,236,648
28 × 1,294,166 = 36,236,648
38 × 953,596 = 36,236,648
56 × 647,083 = 36,236,648
76 × 476,798 = 36,236,648
133 × 272,456 = 36,236,648
152 × 238,399 = 36,236,648
266 × 136,228 = 36,236,648
532 × 68,114 = 36,236,648
1,064 × 34,057 = 36,236,648
16 unique multiplications The final answer:
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