To find all the divisors of the number 125,244:
- 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 125,244:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
125,244 = 22 × 32 × 72 × 71
125,244 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) × (2 + 1) × (1 + 1) = 3 × 3 × 3 × 2 = 54
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 125,244
- 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
prime factor =
7
composite factor = 3
2 =
9
composite factor = 2
2 × 3 =
12
composite factor = 2 × 7 =
14
composite factor = 2 × 3
2 =
18
composite factor = 3 × 7 =
21
composite factor = 2
2 × 7 =
28
composite factor = 2
2 × 3
2 =
36
composite factor = 2 × 3 × 7 =
42
composite factor = 7
2 =
49
composite factor = 3
2 × 7 =
63
prime factor =
71
composite factor = 2
2 × 3 × 7 =
84
composite factor = 2 × 7
2 =
98
composite factor = 2 × 3
2 × 7 =
126
composite factor = 2 × 71 =
142
composite factor = 3 × 7
2 =
147
composite factor = 2
2 × 7
2 =
196
composite factor = 3 × 71 =
213
composite factor = 2
2 × 3
2 × 7 =
252
composite factor = 2
2 × 71 =
284
composite factor = 2 × 3 × 7
2 =
294
This list continues below...
... This list continues from above
composite factor = 2 × 3 × 71 =
426
composite factor = 3
2 × 7
2 =
441
composite factor = 7 × 71 =
497
composite factor = 2
2 × 3 × 7
2 =
588
composite factor = 3
2 × 71 =
639
composite factor = 2
2 × 3 × 71 =
852
composite factor = 2 × 3
2 × 7
2 =
882
composite factor = 2 × 7 × 71 =
994
composite factor = 2 × 3
2 × 71 =
1,278
composite factor = 3 × 7 × 71 =
1,491
composite factor = 2
2 × 3
2 × 7
2 =
1,764
composite factor = 2
2 × 7 × 71 =
1,988
composite factor = 2
2 × 3
2 × 71 =
2,556
composite factor = 2 × 3 × 7 × 71 =
2,982
composite factor = 7
2 × 71 =
3,479
composite factor = 3
2 × 7 × 71 =
4,473
composite factor = 2
2 × 3 × 7 × 71 =
5,964
composite factor = 2 × 7
2 × 71 =
6,958
composite factor = 2 × 3
2 × 7 × 71 =
8,946
composite factor = 3 × 7
2 × 71 =
10,437
composite factor = 2
2 × 7
2 × 71 =
13,916
composite factor = 2
2 × 3
2 × 7 × 71 =
17,892
composite factor = 2 × 3 × 7
2 × 71 =
20,874
composite factor = 3
2 × 7
2 × 71 =
31,311
composite factor = 2
2 × 3 × 7
2 × 71 =
41,748
composite factor = 2 × 3
2 × 7
2 × 71 =
62,622
composite factor = 2
2 × 3
2 × 7
2 × 71 =
125,244
54 factors (divisors)
What times what is 125,244?
What number multiplied by what number equals 125,244?
All the combinations of any two natural numbers whose product equals 125,244.
1 × 125,244 = 125,244
2 × 62,622 = 125,244
3 × 41,748 = 125,244
4 × 31,311 = 125,244
6 × 20,874 = 125,244
7 × 17,892 = 125,244
9 × 13,916 = 125,244
12 × 10,437 = 125,244
14 × 8,946 = 125,244
18 × 6,958 = 125,244
21 × 5,964 = 125,244
28 × 4,473 = 125,244
36 × 3,479 = 125,244
42 × 2,982 = 125,244
49 × 2,556 = 125,244
63 × 1,988 = 125,244
71 × 1,764 = 125,244
84 × 1,491 = 125,244
98 × 1,278 = 125,244
126 × 994 = 125,244
142 × 882 = 125,244
147 × 852 = 125,244
196 × 639 = 125,244
213 × 588 = 125,244
252 × 497 = 125,244
284 × 441 = 125,244
294 × 426 = 125,244
27 unique multiplications The final answer:
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