To find all the divisors of the number 136,926,680:
- 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 136,926,680:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
136,926,680 = 23 × 5 × 11 × 311,197
136,926,680 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 136,926,680
- 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 =
5
composite factor = 2
3 =
8
composite factor = 2 × 5 =
10
prime factor =
11
composite factor = 2
2 × 5 =
20
composite factor = 2 × 11 =
22
composite factor = 2
3 × 5 =
40
composite factor = 2
2 × 11 =
44
composite factor = 5 × 11 =
55
composite factor = 2
3 × 11 =
88
composite factor = 2 × 5 × 11 =
110
composite factor = 2
2 × 5 × 11 =
220
composite factor = 2
3 × 5 × 11 =
440
This list continues below...
... This list continues from above
prime factor =
311,197
composite factor = 2 × 311,197 =
622,394
composite factor = 2
2 × 311,197 =
1,244,788
composite factor = 5 × 311,197 =
1,555,985
composite factor = 2
3 × 311,197 =
2,489,576
composite factor = 2 × 5 × 311,197 =
3,111,970
composite factor = 11 × 311,197 =
3,423,167
composite factor = 2
2 × 5 × 311,197 =
6,223,940
composite factor = 2 × 11 × 311,197 =
6,846,334
composite factor = 2
3 × 5 × 311,197 =
12,447,880
composite factor = 2
2 × 11 × 311,197 =
13,692,668
composite factor = 5 × 11 × 311,197 =
17,115,835
composite factor = 2
3 × 11 × 311,197 =
27,385,336
composite factor = 2 × 5 × 11 × 311,197 =
34,231,670
composite factor = 2
2 × 5 × 11 × 311,197 =
68,463,340
composite factor = 2
3 × 5 × 11 × 311,197 =
136,926,680
32 factors (divisors)
What times what is 136,926,680?
What number multiplied by what number equals 136,926,680?
All the combinations of any two natural numbers whose product equals 136,926,680.
1 × 136,926,680 = 136,926,680
2 × 68,463,340 = 136,926,680
4 × 34,231,670 = 136,926,680
5 × 27,385,336 = 136,926,680
8 × 17,115,835 = 136,926,680
10 × 13,692,668 = 136,926,680
11 × 12,447,880 = 136,926,680
20 × 6,846,334 = 136,926,680
22 × 6,223,940 = 136,926,680
40 × 3,423,167 = 136,926,680
44 × 3,111,970 = 136,926,680
55 × 2,489,576 = 136,926,680
88 × 1,555,985 = 136,926,680
110 × 1,244,788 = 136,926,680
220 × 622,394 = 136,926,680
440 × 311,197 = 136,926,680
16 unique multiplications The final answer:
(scroll down)