To find all the divisors of the number 68,000,000,140:
- 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 68,000,000,140:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
68,000,000,140 = 22 × 5 × 107 × 157 × 202,393
68,000,000,140 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 = (2 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 3 × 2 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 68,000,000,140
- 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 × 5 =
10
composite factor = 2
2 × 5 =
20
prime factor =
107
prime factor =
157
composite factor = 2 × 107 =
214
composite factor = 2 × 157 =
314
composite factor = 2
2 × 107 =
428
composite factor = 5 × 107 =
535
composite factor = 2
2 × 157 =
628
composite factor = 5 × 157 =
785
composite factor = 2 × 5 × 107 =
1,070
composite factor = 2 × 5 × 157 =
1,570
composite factor = 2
2 × 5 × 107 =
2,140
composite factor = 2
2 × 5 × 157 =
3,140
composite factor = 107 × 157 =
16,799
composite factor = 2 × 107 × 157 =
33,598
composite factor = 2
2 × 107 × 157 =
67,196
composite factor = 5 × 107 × 157 =
83,995
composite factor = 2 × 5 × 107 × 157 =
167,990
prime factor =
202,393
This list continues below...
... This list continues from above
composite factor = 2
2 × 5 × 107 × 157 =
335,980
composite factor = 2 × 202,393 =
404,786
composite factor = 2
2 × 202,393 =
809,572
composite factor = 5 × 202,393 =
1,011,965
composite factor = 2 × 5 × 202,393 =
2,023,930
composite factor = 2
2 × 5 × 202,393 =
4,047,860
composite factor = 107 × 202,393 =
21,656,051
composite factor = 157 × 202,393 =
31,775,701
composite factor = 2 × 107 × 202,393 =
43,312,102
composite factor = 2 × 157 × 202,393 =
63,551,402
composite factor = 2
2 × 107 × 202,393 =
86,624,204
composite factor = 5 × 107 × 202,393 =
108,280,255
composite factor = 2
2 × 157 × 202,393 =
127,102,804
composite factor = 5 × 157 × 202,393 =
158,878,505
composite factor = 2 × 5 × 107 × 202,393 =
216,560,510
composite factor = 2 × 5 × 157 × 202,393 =
317,757,010
composite factor = 2
2 × 5 × 107 × 202,393 =
433,121,020
composite factor = 2
2 × 5 × 157 × 202,393 =
635,514,020
composite factor = 107 × 157 × 202,393 =
3,400,000,007
composite factor = 2 × 107 × 157 × 202,393 =
6,800,000,014
composite factor = 2
2 × 107 × 157 × 202,393 =
13,600,000,028
composite factor = 5 × 107 × 157 × 202,393 =
17,000,000,035
composite factor = 2 × 5 × 107 × 157 × 202,393 =
34,000,000,070
composite factor = 2
2 × 5 × 107 × 157 × 202,393 =
68,000,000,140
48 factors (divisors)
What times what is 68,000,000,140?
What number multiplied by what number equals 68,000,000,140?
All the combinations of any two natural numbers whose product equals 68,000,000,140.
1 × 68,000,000,140 = 68,000,000,140
2 × 34,000,000,070 = 68,000,000,140
4 × 17,000,000,035 = 68,000,000,140
5 × 13,600,000,028 = 68,000,000,140
10 × 6,800,000,014 = 68,000,000,140
20 × 3,400,000,007 = 68,000,000,140
107 × 635,514,020 = 68,000,000,140
157 × 433,121,020 = 68,000,000,140
214 × 317,757,010 = 68,000,000,140
314 × 216,560,510 = 68,000,000,140
428 × 158,878,505 = 68,000,000,140
535 × 127,102,804 = 68,000,000,140
628 × 108,280,255 = 68,000,000,140
785 × 86,624,204 = 68,000,000,140
1,070 × 63,551,402 = 68,000,000,140
1,570 × 43,312,102 = 68,000,000,140
2,140 × 31,775,701 = 68,000,000,140
3,140 × 21,656,051 = 68,000,000,140
16,799 × 4,047,860 = 68,000,000,140
33,598 × 2,023,930 = 68,000,000,140
67,196 × 1,011,965 = 68,000,000,140
83,995 × 809,572 = 68,000,000,140
167,990 × 404,786 = 68,000,000,140
202,393 × 335,980 = 68,000,000,140
24 unique multiplications The final answer:
(scroll down)