Calculate the Greatest Common Factor or GCF of 1551
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The instructions to find the GCF of 1551 are the next:
1. Decompose all numbers into prime factors
1551 | 3 |
517 | 11 |
47 | 47 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 1551 | = | 3 . 11 . 47 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 3 , 11 , 47
Common prime factors with the lowest exponent: 31, 111, 471
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 = 31. 111. 471 = 1551
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