Calculate the Greatest Common Factor or GCF of 1395
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The instructions to find the GCF of 1395 are the next:
1. Decompose all numbers into prime factors
| 1395 | 3 |
| 465 | 3 |
| 155 | 5 |
| 31 | 31 |
| 1 |
2. Write all numbers as the product of its prime factors
| Prime factors of 1395 | = | 32 . 5 . 31 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 3 , 5 , 31
Common prime factors with the lowest exponent: 32, 51, 311
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 = 32. 51. 311 = 1395
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