Calculate the Greatest Common Factor or GCF of 2 and 844
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The instructions to find the GCF of 2 and 844 are the next:
1. Decompose all numbers into prime factors
2 | 2 |
1 |
844 | 2 |
422 | 2 |
211 | 211 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 2 | = | 2 |
Prime factors of 844 | = | 22 . 211 |
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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