To find all the divisors of the number 124,344:
- 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 124,344:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
124,344 = 23 × 32 × 11 × 157
124,344 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 = (3 + 1) × (2 + 1) × (1 + 1) × (1 + 1) = 4 × 3 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 124,344
- 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
composite factor = 2 × 3 =
6
composite factor = 2
3 =
8
composite factor = 3
2 =
9
prime factor =
11
composite factor = 2
2 × 3 =
12
composite factor = 2 × 3
2 =
18
composite factor = 2 × 11 =
22
composite factor = 2
3 × 3 =
24
composite factor = 3 × 11 =
33
composite factor = 2
2 × 3
2 =
36
composite factor = 2
2 × 11 =
44
composite factor = 2 × 3 × 11 =
66
composite factor = 2
3 × 3
2 =
72
composite factor = 2
3 × 11 =
88
composite factor = 3
2 × 11 =
99
composite factor = 2
2 × 3 × 11 =
132
prime factor =
157
composite factor = 2 × 3
2 × 11 =
198
composite factor = 2
3 × 3 × 11 =
264
composite factor = 2 × 157 =
314
This list continues below...
... This list continues from above
composite factor = 2
2 × 3
2 × 11 =
396
composite factor = 3 × 157 =
471
composite factor = 2
2 × 157 =
628
composite factor = 2
3 × 3
2 × 11 =
792
composite factor = 2 × 3 × 157 =
942
composite factor = 2
3 × 157 =
1,256
composite factor = 3
2 × 157 =
1,413
composite factor = 11 × 157 =
1,727
composite factor = 2
2 × 3 × 157 =
1,884
composite factor = 2 × 3
2 × 157 =
2,826
composite factor = 2 × 11 × 157 =
3,454
composite factor = 2
3 × 3 × 157 =
3,768
composite factor = 3 × 11 × 157 =
5,181
composite factor = 2
2 × 3
2 × 157 =
5,652
composite factor = 2
2 × 11 × 157 =
6,908
composite factor = 2 × 3 × 11 × 157 =
10,362
composite factor = 2
3 × 3
2 × 157 =
11,304
composite factor = 2
3 × 11 × 157 =
13,816
composite factor = 3
2 × 11 × 157 =
15,543
composite factor = 2
2 × 3 × 11 × 157 =
20,724
composite factor = 2 × 3
2 × 11 × 157 =
31,086
composite factor = 2
3 × 3 × 11 × 157 =
41,448
composite factor = 2
2 × 3
2 × 11 × 157 =
62,172
composite factor = 2
3 × 3
2 × 11 × 157 =
124,344
48 factors (divisors)
What times what is 124,344?
What number multiplied by what number equals 124,344?
All the combinations of any two natural numbers whose product equals 124,344.
1 × 124,344 = 124,344
2 × 62,172 = 124,344
3 × 41,448 = 124,344
4 × 31,086 = 124,344
6 × 20,724 = 124,344
8 × 15,543 = 124,344
9 × 13,816 = 124,344
11 × 11,304 = 124,344
12 × 10,362 = 124,344
18 × 6,908 = 124,344
22 × 5,652 = 124,344
24 × 5,181 = 124,344
33 × 3,768 = 124,344
36 × 3,454 = 124,344
44 × 2,826 = 124,344
66 × 1,884 = 124,344
72 × 1,727 = 124,344
88 × 1,413 = 124,344
99 × 1,256 = 124,344
132 × 942 = 124,344
157 × 792 = 124,344
198 × 628 = 124,344
264 × 471 = 124,344
314 × 396 = 124,344
24 unique multiplications The final answer:
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