Calculate the Greatest Common Factor or GCF of 52 and 2156
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The instructions to find the GCF of 52 and 2156 are the next:
1. Decompose all numbers into prime factors
| 52 | 2 |
| 26 | 2 |
| 13 | 13 |
| 1 |
| 2156 | 2 |
| 1078 | 2 |
| 539 | 7 |
| 77 | 7 |
| 11 | 11 |
| 1 |
2. Write all numbers as the product of its prime factors
| Prime factors of 52 | = | 22 . 13 |
| Prime factors of 2156 | = | 22 . 72 . 11 |
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
Also calculates the:
