To find all the divisors of the number 124,176:
- 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 124,176:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
124,176 = 24 × 3 × 13 × 199
124,176 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 124,176
- 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 = 2
2 × 3 =
12
prime factor =
13
composite factor = 2
4 =
16
composite factor = 2
3 × 3 =
24
composite factor = 2 × 13 =
26
composite factor = 3 × 13 =
39
composite factor = 2
4 × 3 =
48
composite factor = 2
2 × 13 =
52
composite factor = 2 × 3 × 13 =
78
composite factor = 2
3 × 13 =
104
composite factor = 2
2 × 3 × 13 =
156
prime factor =
199
composite factor = 2
4 × 13 =
208
composite factor = 2
3 × 3 × 13 =
312
This list continues below...
... This list continues from above
composite factor = 2 × 199 =
398
composite factor = 3 × 199 =
597
composite factor = 2
4 × 3 × 13 =
624
composite factor = 2
2 × 199 =
796
composite factor = 2 × 3 × 199 =
1,194
composite factor = 2
3 × 199 =
1,592
composite factor = 2
2 × 3 × 199 =
2,388
composite factor = 13 × 199 =
2,587
composite factor = 2
4 × 199 =
3,184
composite factor = 2
3 × 3 × 199 =
4,776
composite factor = 2 × 13 × 199 =
5,174
composite factor = 3 × 13 × 199 =
7,761
composite factor = 2
4 × 3 × 199 =
9,552
composite factor = 2
2 × 13 × 199 =
10,348
composite factor = 2 × 3 × 13 × 199 =
15,522
composite factor = 2
3 × 13 × 199 =
20,696
composite factor = 2
2 × 3 × 13 × 199 =
31,044
composite factor = 2
4 × 13 × 199 =
41,392
composite factor = 2
3 × 3 × 13 × 199 =
62,088
composite factor = 2
4 × 3 × 13 × 199 =
124,176
40 factors (divisors)
What times what is 124,176?
What number multiplied by what number equals 124,176?
All the combinations of any two natural numbers whose product equals 124,176.
1 × 124,176 = 124,176
2 × 62,088 = 124,176
3 × 41,392 = 124,176
4 × 31,044 = 124,176
6 × 20,696 = 124,176
8 × 15,522 = 124,176
12 × 10,348 = 124,176
13 × 9,552 = 124,176
16 × 7,761 = 124,176
24 × 5,174 = 124,176
26 × 4,776 = 124,176
39 × 3,184 = 124,176
48 × 2,587 = 124,176
52 × 2,388 = 124,176
78 × 1,592 = 124,176
104 × 1,194 = 124,176
156 × 796 = 124,176
199 × 624 = 124,176
208 × 597 = 124,176
312 × 398 = 124,176
20 unique multiplications The final answer:
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