Calculate the Greatest Common Factor or GCF of 96, 108, 112 and 124
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The instructions to find the GCF of 96, 108, 112 and 124 are the next:
1. Decompose all numbers into prime factors
| 96 | 2 |
| 48 | 2 |
| 24 | 2 |
| 12 | 2 |
| 6 | 2 |
| 3 | 3 |
| 1 |
| 108 | 2 |
| 54 | 2 |
| 27 | 3 |
| 9 | 3 |
| 3 | 3 |
| 1 |
| 112 | 2 |
| 56 | 2 |
| 28 | 2 |
| 14 | 2 |
| 7 | 7 |
| 1 |
| 124 | 2 |
| 62 | 2 |
| 31 | 31 |
| 1 |
2. Write all numbers as the product of its prime factors
| Prime factors of 96 | = | 25 . 3 |
| Prime factors of 108 | = | 22 . 33 |
| Prime factors of 112 | = | 24 . 7 |
| Prime factors of 124 | = | 22 . 31 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 2
Common prime factors with the lowest exponent: 22
4. Calculate the Greatest Common Factor or GCF
Remember, to find the GCF of several numbers you must multiply the common prime factors with the lowest exponent.
GCF = 22 = 4
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