Calculate the Greatest Common Factor or GCF of 2185
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The instructions to find the GCF of 2185 are the next:
1. Decompose all numbers into prime factors
2185 | 5 |
437 | 19 |
23 | 23 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 2185 | = | 5 . 19 . 23 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 5 , 19 , 23
Common prime factors with the lowest exponent: 51, 191, 231
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 = 51. 191. 231 = 2185
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