Calculate the Greatest Common Factor or GCF of 234, 342 and 482
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The instructions to find the GCF of 234, 342 and 482 are the next:
1. Decompose all numbers into prime factors
| 234 | 2 |
| 117 | 3 |
| 39 | 3 |
| 13 | 13 |
| 1 |
| 342 | 2 |
| 171 | 3 |
| 57 | 3 |
| 19 | 19 |
| 1 |
| 482 | 2 |
| 241 | 241 |
| 1 |
2. Write all numbers as the product of its prime factors
| Prime factors of 234 | = | 2 . 32 . 13 |
| Prime factors of 342 | = | 2 . 32 . 19 |
| Prime factors of 482 | = | 2 . 241 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 2
Common prime factors with the lowest exponent: 21
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 = 21 = 2
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