Calculate the Greatest Common Factor or GCF of 51240
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The instructions to find the GCF of 51240 are the next:
1. Decompose all numbers into prime factors
51240 | 2 |
25620 | 2 |
12810 | 2 |
6405 | 3 |
2135 | 5 |
427 | 7 |
61 | 61 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 51240 | = | 23 . 3 . 5 . 7 . 61 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 2 , 3 , 5 , 7 , 61
Common prime factors with the lowest exponent: 23, 31, 51, 71, 611
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 = 23. 31. 51. 71. 611 = 51240
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