Calculate the Greatest Common Factor or GCF of 51221
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The instructions to find the GCF of 51221 are the next:
1. Decompose all numbers into prime factors
51221 | 17 |
3013 | 23 |
131 | 131 |
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2. Write all numbers as the product of its prime factors
Prime factors of 51221 | = | 17 . 23 . 131 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 17 , 23 , 131
Common prime factors with the lowest exponent: 171, 231, 1311
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 = 171. 231. 1311 = 51221
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