To find all the divisors of the number 107,052,820:
- 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 107,052,820:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
107,052,820 = 22 × 5 × 7 × 653 × 1,171
107,052,820 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 107,052,820
- 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
prime factor =
7
composite factor = 2 × 5 =
10
composite factor = 2 × 7 =
14
composite factor = 2
2 × 5 =
20
composite factor = 2
2 × 7 =
28
composite factor = 5 × 7 =
35
composite factor = 2 × 5 × 7 =
70
composite factor = 2
2 × 5 × 7 =
140
prime factor =
653
prime factor =
1,171
composite factor = 2 × 653 =
1,306
composite factor = 2 × 1,171 =
2,342
composite factor = 2
2 × 653 =
2,612
composite factor = 5 × 653 =
3,265
composite factor = 7 × 653 =
4,571
composite factor = 2
2 × 1,171 =
4,684
composite factor = 5 × 1,171 =
5,855
composite factor = 2 × 5 × 653 =
6,530
composite factor = 7 × 1,171 =
8,197
composite factor = 2 × 7 × 653 =
9,142
This list continues below...
... This list continues from above
composite factor = 2 × 5 × 1,171 =
11,710
composite factor = 2
2 × 5 × 653 =
13,060
composite factor = 2 × 7 × 1,171 =
16,394
composite factor = 2
2 × 7 × 653 =
18,284
composite factor = 5 × 7 × 653 =
22,855
composite factor = 2
2 × 5 × 1,171 =
23,420
composite factor = 2
2 × 7 × 1,171 =
32,788
composite factor = 5 × 7 × 1,171 =
40,985
composite factor = 2 × 5 × 7 × 653 =
45,710
composite factor = 2 × 5 × 7 × 1,171 =
81,970
composite factor = 2
2 × 5 × 7 × 653 =
91,420
composite factor = 2
2 × 5 × 7 × 1,171 =
163,940
composite factor = 653 × 1,171 =
764,663
composite factor = 2 × 653 × 1,171 =
1,529,326
composite factor = 2
2 × 653 × 1,171 =
3,058,652
composite factor = 5 × 653 × 1,171 =
3,823,315
composite factor = 7 × 653 × 1,171 =
5,352,641
composite factor = 2 × 5 × 653 × 1,171 =
7,646,630
composite factor = 2 × 7 × 653 × 1,171 =
10,705,282
composite factor = 2
2 × 5 × 653 × 1,171 =
15,293,260
composite factor = 2
2 × 7 × 653 × 1,171 =
21,410,564
composite factor = 5 × 7 × 653 × 1,171 =
26,763,205
composite factor = 2 × 5 × 7 × 653 × 1,171 =
53,526,410
composite factor = 2
2 × 5 × 7 × 653 × 1,171 =
107,052,820
48 factors (divisors)
What times what is 107,052,820?
What number multiplied by what number equals 107,052,820?
All the combinations of any two natural numbers whose product equals 107,052,820.
1 × 107,052,820 = 107,052,820
2 × 53,526,410 = 107,052,820
4 × 26,763,205 = 107,052,820
5 × 21,410,564 = 107,052,820
7 × 15,293,260 = 107,052,820
10 × 10,705,282 = 107,052,820
14 × 7,646,630 = 107,052,820
20 × 5,352,641 = 107,052,820
28 × 3,823,315 = 107,052,820
35 × 3,058,652 = 107,052,820
70 × 1,529,326 = 107,052,820
140 × 764,663 = 107,052,820
653 × 163,940 = 107,052,820
1,171 × 91,420 = 107,052,820
1,306 × 81,970 = 107,052,820
2,342 × 45,710 = 107,052,820
2,612 × 40,985 = 107,052,820
3,265 × 32,788 = 107,052,820
4,571 × 23,420 = 107,052,820
4,684 × 22,855 = 107,052,820
5,855 × 18,284 = 107,052,820
6,530 × 16,394 = 107,052,820
8,197 × 13,060 = 107,052,820
9,142 × 11,710 = 107,052,820
24 unique multiplications The final answer:
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