SOLUTION: HOw many distinct prime numbers are factors of 70?

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Question 20179: HOw many distinct prime numbers are factors of 70?
Found 2 solutions by Earlsdon, christinaaa192:
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
You need to do a factor tree for 70.
70 = 2*35
35 = 5*7
The prime factors of 70 are: 2, 5, and 7

Answer by christinaaa192(28) About Me  (Show Source):
You can put this solution on YOUR website!
and if you want to check to make sure you have the prime numbers correct you can multiply them. 2x5x7= 2x35= 70!!! so that means 2 5 and 7 are prime number and are factors of 70