The greatest common factor (GCF) for 15 and 6x is 3.
What is greatest common factor (GCF)?
The largest factor that splits both numbers is said to be the greatest common factor. List the prime factors of each integer before calculating the greatest common factor.
Calculation for greatest common factor (GCF):
- The factors of 15 are 1,3,5,15. As all these number divide the number 15 completely such that there is no remainder left.
- The factors of 6x are 1,2,3,6. Since, all these divide 6x to leave no remainder.
Thus, the GCF of 15 and 6x are the number which is common in the factors of both numbers.
Therefore, greatest common factor GCF of 15 and 6x is 3.
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