SOLUTION: What is the greatest common factor of 105 and 126? (A) 3 (B) 7 (C) 9 (D) 21 (E) 35

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Question 253178: What is the greatest common factor of 105 and 126?
(A) 3 (B) 7 (C) 9 (D) 21 (E) 35
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
105=5*3*7
126=3*6*7
the largest factor of each is 3*7=21