Calculate the Greatest Common Factor or GCF of 407
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The instructions to find the GCF of 407 are the next:
1. Decompose all numbers into prime factors
407 | 11 |
37 | 37 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 407 | = | 11 . 37 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 11 , 37
Common prime factors with the lowest exponent: 111, 371
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 = 111. 371 = 407
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