Calculate the Greatest Common Factor or GCF of 1362 and 2558
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The instructions to find the GCF of 1362 and 2558 are the next:
1. Decompose all numbers into prime factors
1362 | 2 |
681 | 3 |
227 | 227 |
1 |
2558 | 2 |
1279 | 1279 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 1362 | = | 2 . 3 . 227 |
Prime factors of 2558 | = | 2 . 1279 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 2
Common prime factors with the lowest exponent: 21
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 = 21 = 2
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