Calculate the Greatest Common Factor or GCF of 2430
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The instructions to find the GCF of 2430 are the next:
1. Decompose all numbers into prime factors
2430 | 2 |
1215 | 3 |
405 | 3 |
135 | 3 |
45 | 3 |
15 | 3 |
5 | 5 |
1 |
2. Write all numbers as the product of its prime factors
Prime factors of 2430 | = | 2 . 35 . 5 |
3. Choose the common prime factors with the lowest exponent
Common prime factors: 2 , 3 , 5
Common prime factors with the lowest exponent: 21, 35, 51
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. 35. 51 = 2430
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