Calculate the Greatest Common Factor or GCF of 1557
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The instructions to find the GCF of 1557 are the next:
1. Decompose all numbers into prime factors
1557 | 3 |
519 | 3 |
173 | 173 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 1557 | = | 32 . 173 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 3 , 173
Common prime factors with the lowest exponent: 32, 1731
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 = 32. 1731 = 1557
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