Calculate the Greatest Common Factor or GCF of 24, 56 and 104
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The instructions to find the GCF of 24, 56 and 104 are the next:
1. Decompose all numbers into prime factors
| 24 | 2 |
| 12 | 2 |
| 6 | 2 |
| 3 | 3 |
| 1 |
| 56 | 2 |
| 28 | 2 |
| 14 | 2 |
| 7 | 7 |
| 1 |
| 104 | 2 |
| 52 | 2 |
| 26 | 2 |
| 13 | 13 |
| 1 |
2. Write all numbers as the product of its prime factors
| Prime factors of 24 | = | 23 . 3 |
| Prime factors of 56 | = | 23 . 7 |
| Prime factors of 104 | = | 23 . 13 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 2
Common prime factors with the lowest exponent: 23
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 = 23 = 8
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