Verified Answer :

Anna00

Well if you multiply 65 and 63, you get 4095. So yeah... :)

I don't like Mathcounts, so I guess-and-check.

Ok, not guess and check but educated guessing??

Let's make estimates.

55 and 65? 3575.

60 x 70? 4200. 

In between.

60 x 65? 3900. We need more.

61 x 65? 3965. MORE.

62 x 65? 4030. Close!!

63 x 65? Got it!

I guess and check, but the most efficient way would be to MAKE A TABLE. Multiples of 4095 with numbers in between 50 and 70!! Hope this helped!

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