Calculate the Greatest Common Factor or GCF of 468
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The instructions to find the GCF of 468 are the next:
1. Decompose all numbers into prime factors
| 468 | 2 |
| 234 | 2 |
| 117 | 3 |
| 39 | 3 |
| 13 | 13 |
| 1 |
2. Write all numbers as the product of its prime factors
| Prime factors of 468 | = | 22 . 32 . 13 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 2 , 3 , 13
Common prime factors with the lowest exponent: 22, 32, 131
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. 32. 131 = 468
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