SOLUTION: how many numbers up to 200 are divisible by 5 and 7 together

Question 1119994: how many numbers up to 200 are divisible by 5 and 7 together
Found 2 solutions by ikleyn, solver91311:
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
.

35, 70, 105, 140, 175. <<<---=== Those and only those that are multiple of 5*7 = 35. Count them !

Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Divide 200 by 35 and then round DOWN. In order for a number to be divisible by both 5 and 7, it must be divisible by the product of 5 and 7, namely 35.

John

My calculator said it, I believe it, that settles it

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