To find all the divisors of the number 43,420,124:
- 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 43,420,124:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
43,420,124 = 22 × 112 × 283 × 317
43,420,124 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 43,420,124
- 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 =
11
composite factor = 2 × 11 =
22
composite factor = 2
2 × 11 =
44
composite factor = 11
2 =
121
composite factor = 2 × 11
2 =
242
prime factor =
283
prime factor =
317
composite factor = 2
2 × 11
2 =
484
composite factor = 2 × 283 =
566
composite factor = 2 × 317 =
634
composite factor = 2
2 × 283 =
1,132
composite factor = 2
2 × 317 =
1,268
composite factor = 11 × 283 =
3,113
composite factor = 11 × 317 =
3,487
composite factor = 2 × 11 × 283 =
6,226
This list continues below...
... This list continues from above
composite factor = 2 × 11 × 317 =
6,974
composite factor = 2
2 × 11 × 283 =
12,452
composite factor = 2
2 × 11 × 317 =
13,948
composite factor = 11
2 × 283 =
34,243
composite factor = 11
2 × 317 =
38,357
composite factor = 2 × 11
2 × 283 =
68,486
composite factor = 2 × 11
2 × 317 =
76,714
composite factor = 283 × 317 =
89,711
composite factor = 2
2 × 11
2 × 283 =
136,972
composite factor = 2
2 × 11
2 × 317 =
153,428
composite factor = 2 × 283 × 317 =
179,422
composite factor = 2
2 × 283 × 317 =
358,844
composite factor = 11 × 283 × 317 =
986,821
composite factor = 2 × 11 × 283 × 317 =
1,973,642
composite factor = 2
2 × 11 × 283 × 317 =
3,947,284
composite factor = 11
2 × 283 × 317 =
10,855,031
composite factor = 2 × 11
2 × 283 × 317 =
21,710,062
composite factor = 2
2 × 11
2 × 283 × 317 =
43,420,124
36 factors (divisors)
What times what is 43,420,124?
What number multiplied by what number equals 43,420,124?
All the combinations of any two natural numbers whose product equals 43,420,124.
1 × 43,420,124 = 43,420,124
2 × 21,710,062 = 43,420,124
4 × 10,855,031 = 43,420,124
11 × 3,947,284 = 43,420,124
22 × 1,973,642 = 43,420,124
44 × 986,821 = 43,420,124
121 × 358,844 = 43,420,124
242 × 179,422 = 43,420,124
283 × 153,428 = 43,420,124
317 × 136,972 = 43,420,124
484 × 89,711 = 43,420,124
566 × 76,714 = 43,420,124
634 × 68,486 = 43,420,124
1,132 × 38,357 = 43,420,124
1,268 × 34,243 = 43,420,124
3,113 × 13,948 = 43,420,124
3,487 × 12,452 = 43,420,124
6,226 × 6,974 = 43,420,124
18 unique multiplications The final answer:
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