SOLUTION: Write the prime factorization for each number and find their greatest common factor. 63, 105, 168

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: Write the prime factorization for each number and find their greatest common factor. 63, 105, 168       Log On


   

Question 392061: Write the prime factorization for each number and find their greatest common factor.
63, 105, 168
Found 2 solutions by rfer, richard1234:
Answer by rfer(16322) About Me  (Show Source):
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
63 = 3^2 * 7
105 = 3 * 5 * 7
168 = 3 * 2^3 * 7

GCF = 21