Question 431479: Find all the factors of 42. Please show all of your work.
Found 2 solutions by Alan3354, josmiceli:
Answer by Alan3354(69443)   (Show Source):
Answer by josmiceli(19441)  (Show Source):
You can put this solution on YOUR website! None of the factors can be greater than 1/2 of 42,
except for 1 x 42, so start with 
21 x 2 = 42
Is 3 a factor? yes
14 x 3 = 42
4 and 5 are not factors, but
both 6 and 7 are
6 x 7 = 42
8 through 13 are not
15 through 20 are not
The factors are
1,2,3,6,7,14, and 21
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