Anonymous

What Is The GCF Of 6 And 15?

2 Answers

Piyush Kumar Profile
Piyush Kumar answered
Factors of 6 are = 2*3
Factors of 15 are = 3*5
The GCF is 3
Oddman Profile
Oddman answered
6 = 2*3 15 = 3*5

The greatest common factor is the only common factor, 3.
thanked the writer.
Anonymous
Anonymous commented
Are you sure ?
Oddman
Oddman commented
Quite sure. Once you divide both numbers by 3, the values that remain are 2 and 5. Their only common factor is 1. Thus 3 is the greatest common factor of 6 and 15.
You can also do it by the Euclidean algorithm. 15/6 = 2 remainder 3. 6/3 = 2 remainder 0. Thus 3 is the GCF.

Answer Question

Anonymous