Calculate the Greatest Common Factor or GCF of 51420
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The instructions to find the GCF of 51420 are the next:
1. Decompose all numbers into prime factors
51420 | 2 |
25710 | 2 |
12855 | 3 |
4285 | 5 |
857 | 857 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 51420 | = | 22 . 3 . 5 . 857 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 2 , 3 , 5 , 857
Common prime factors with the lowest exponent: 22, 31, 51, 8571
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 = 22. 31. 51. 8571 = 51420
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