To find all the divisors of the number 112,732,080:
- 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 112,732,080:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
112,732,080 = 24 × 3 × 5 × 469,717
112,732,080 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 = (4 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 5 × 2 × 2 × 2 = 40
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 112,732,080
- 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
prime factor =
3
composite factor = 2
2 =
4
prime factor =
5
composite factor = 2 × 3 =
6
composite factor = 2
3 =
8
composite factor = 2 × 5 =
10
composite factor = 2
2 × 3 =
12
composite factor = 3 × 5 =
15
composite factor = 2
4 =
16
composite factor = 2
2 × 5 =
20
composite factor = 2
3 × 3 =
24
composite factor = 2 × 3 × 5 =
30
composite factor = 2
3 × 5 =
40
composite factor = 2
4 × 3 =
48
composite factor = 2
2 × 3 × 5 =
60
composite factor = 2
4 × 5 =
80
composite factor = 2
3 × 3 × 5 =
120
composite factor = 2
4 × 3 × 5 =
240
This list continues below...
... This list continues from above
prime factor =
469,717
composite factor = 2 × 469,717 =
939,434
composite factor = 3 × 469,717 =
1,409,151
composite factor = 2
2 × 469,717 =
1,878,868
composite factor = 5 × 469,717 =
2,348,585
composite factor = 2 × 3 × 469,717 =
2,818,302
composite factor = 2
3 × 469,717 =
3,757,736
composite factor = 2 × 5 × 469,717 =
4,697,170
composite factor = 2
2 × 3 × 469,717 =
5,636,604
composite factor = 3 × 5 × 469,717 =
7,045,755
composite factor = 2
4 × 469,717 =
7,515,472
composite factor = 2
2 × 5 × 469,717 =
9,394,340
composite factor = 2
3 × 3 × 469,717 =
11,273,208
composite factor = 2 × 3 × 5 × 469,717 =
14,091,510
composite factor = 2
3 × 5 × 469,717 =
18,788,680
composite factor = 2
4 × 3 × 469,717 =
22,546,416
composite factor = 2
2 × 3 × 5 × 469,717 =
28,183,020
composite factor = 2
4 × 5 × 469,717 =
37,577,360
composite factor = 2
3 × 3 × 5 × 469,717 =
56,366,040
composite factor = 2
4 × 3 × 5 × 469,717 =
112,732,080
40 factors (divisors)
What times what is 112,732,080?
What number multiplied by what number equals 112,732,080?
All the combinations of any two natural numbers whose product equals 112,732,080.
1 × 112,732,080 = 112,732,080
2 × 56,366,040 = 112,732,080
3 × 37,577,360 = 112,732,080
4 × 28,183,020 = 112,732,080
5 × 22,546,416 = 112,732,080
6 × 18,788,680 = 112,732,080
8 × 14,091,510 = 112,732,080
10 × 11,273,208 = 112,732,080
12 × 9,394,340 = 112,732,080
15 × 7,515,472 = 112,732,080
16 × 7,045,755 = 112,732,080
20 × 5,636,604 = 112,732,080
24 × 4,697,170 = 112,732,080
30 × 3,757,736 = 112,732,080
40 × 2,818,302 = 112,732,080
48 × 2,348,585 = 112,732,080
60 × 1,878,868 = 112,732,080
80 × 1,409,151 = 112,732,080
120 × 939,434 = 112,732,080
240 × 469,717 = 112,732,080
20 unique multiplications The final answer:
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