To find all the divisors of the number 164,968,744,675:
- 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 164,968,744,675:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
164,968,744,675 = 52 × 72 × 8,431 × 15,973
164,968,744,675 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) × (2 + 1) × (1 + 1) × (1 + 1) = 3 × 3 × 2 × 2 = 36
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 164,968,744,675
- 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 =
5
prime factor =
7
composite factor = 5
2 =
25
composite factor = 5 × 7 =
35
composite factor = 7
2 =
49
composite factor = 5
2 × 7 =
175
composite factor = 5 × 7
2 =
245
composite factor = 5
2 × 7
2 =
1,225
prime factor =
8,431
prime factor =
15,973
composite factor = 5 × 8,431 =
42,155
composite factor = 7 × 8,431 =
59,017
composite factor = 5 × 15,973 =
79,865
composite factor = 7 × 15,973 =
111,811
composite factor = 5
2 × 8,431 =
210,775
composite factor = 5 × 7 × 8,431 =
295,085
composite factor = 5
2 × 15,973 =
399,325
This list continues below...
... This list continues from above
composite factor = 7
2 × 8,431 =
413,119
composite factor = 5 × 7 × 15,973 =
559,055
composite factor = 7
2 × 15,973 =
782,677
composite factor = 5
2 × 7 × 8,431 =
1,475,425
composite factor = 5 × 7
2 × 8,431 =
2,065,595
composite factor = 5
2 × 7 × 15,973 =
2,795,275
composite factor = 5 × 7
2 × 15,973 =
3,913,385
composite factor = 5
2 × 7
2 × 8,431 =
10,327,975
composite factor = 5
2 × 7
2 × 15,973 =
19,566,925
composite factor = 8,431 × 15,973 =
134,668,363
composite factor = 5 × 8,431 × 15,973 =
673,341,815
composite factor = 7 × 8,431 × 15,973 =
942,678,541
composite factor = 5
2 × 8,431 × 15,973 =
3,366,709,075
composite factor = 5 × 7 × 8,431 × 15,973 =
4,713,392,705
composite factor = 7
2 × 8,431 × 15,973 =
6,598,749,787
composite factor = 5
2 × 7 × 8,431 × 15,973 =
23,566,963,525
composite factor = 5 × 7
2 × 8,431 × 15,973 =
32,993,748,935
composite factor = 5
2 × 7
2 × 8,431 × 15,973 =
164,968,744,675
36 factors (divisors)
What times what is 164,968,744,675?
What number multiplied by what number equals 164,968,744,675?
All the combinations of any two natural numbers whose product equals 164,968,744,675.
1 × 164,968,744,675 = 164,968,744,675
5 × 32,993,748,935 = 164,968,744,675
7 × 23,566,963,525 = 164,968,744,675
25 × 6,598,749,787 = 164,968,744,675
35 × 4,713,392,705 = 164,968,744,675
49 × 3,366,709,075 = 164,968,744,675
175 × 942,678,541 = 164,968,744,675
245 × 673,341,815 = 164,968,744,675
1,225 × 134,668,363 = 164,968,744,675
8,431 × 19,566,925 = 164,968,744,675
15,973 × 10,327,975 = 164,968,744,675
42,155 × 3,913,385 = 164,968,744,675
59,017 × 2,795,275 = 164,968,744,675
79,865 × 2,065,595 = 164,968,744,675
111,811 × 1,475,425 = 164,968,744,675
210,775 × 782,677 = 164,968,744,675
295,085 × 559,055 = 164,968,744,675
399,325 × 413,119 = 164,968,744,675
18 unique multiplications The final answer:
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