Calculate the Greatest Common Factor or GCF of 1256
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The instructions to find the GCF of 1256 are the next:
1. Decompose all numbers into prime factors
1256 | 2 |
628 | 2 |
314 | 2 |
157 | 157 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 1256 | = | 23 . 157 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 2 , 157
Common prime factors with the lowest exponent: 23, 1571
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. 1571 = 1256
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