To find all the divisors of the number 107,053,975:
- 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 107,053,975:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
107,053,975 = 52 × 72 × 281 × 311
107,053,975 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 107,053,975
- 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
prime factor =
281
prime factor =
311
composite factor = 5
2 × 7
2 =
1,225
composite factor = 5 × 281 =
1,405
composite factor = 5 × 311 =
1,555
composite factor = 7 × 281 =
1,967
composite factor = 7 × 311 =
2,177
composite factor = 5
2 × 281 =
7,025
composite factor = 5
2 × 311 =
7,775
composite factor = 5 × 7 × 281 =
9,835
This list continues below...
... This list continues from above
composite factor = 5 × 7 × 311 =
10,885
composite factor = 7
2 × 281 =
13,769
composite factor = 7
2 × 311 =
15,239
composite factor = 5
2 × 7 × 281 =
49,175
composite factor = 5
2 × 7 × 311 =
54,425
composite factor = 5 × 7
2 × 281 =
68,845
composite factor = 5 × 7
2 × 311 =
76,195
composite factor = 281 × 311 =
87,391
composite factor = 5
2 × 7
2 × 281 =
344,225
composite factor = 5
2 × 7
2 × 311 =
380,975
composite factor = 5 × 281 × 311 =
436,955
composite factor = 7 × 281 × 311 =
611,737
composite factor = 5
2 × 281 × 311 =
2,184,775
composite factor = 5 × 7 × 281 × 311 =
3,058,685
composite factor = 7
2 × 281 × 311 =
4,282,159
composite factor = 5
2 × 7 × 281 × 311 =
15,293,425
composite factor = 5 × 7
2 × 281 × 311 =
21,410,795
composite factor = 5
2 × 7
2 × 281 × 311 =
107,053,975
36 factors (divisors)
What times what is 107,053,975?
What number multiplied by what number equals 107,053,975?
All the combinations of any two natural numbers whose product equals 107,053,975.
1 × 107,053,975 = 107,053,975
5 × 21,410,795 = 107,053,975
7 × 15,293,425 = 107,053,975
25 × 4,282,159 = 107,053,975
35 × 3,058,685 = 107,053,975
49 × 2,184,775 = 107,053,975
175 × 611,737 = 107,053,975
245 × 436,955 = 107,053,975
281 × 380,975 = 107,053,975
311 × 344,225 = 107,053,975
1,225 × 87,391 = 107,053,975
1,405 × 76,195 = 107,053,975
1,555 × 68,845 = 107,053,975
1,967 × 54,425 = 107,053,975
2,177 × 49,175 = 107,053,975
7,025 × 15,239 = 107,053,975
7,775 × 13,769 = 107,053,975
9,835 × 10,885 = 107,053,975
18 unique multiplications The final answer:
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