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What is the number if it divides exactly by 13 and when you write its digits in reverse order you make a square number?

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What is the number if it divides exactly by 13 and when you write its digits in reverse order you make a square number. (You get a square number when you multiply a number by itself - 64 is square because it is 8 times 8)

posted Oct 27, 2017 by anonymous

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1 Answer

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Answer:
52 or 169
these are divisible by 13 and
when reversing 52, 169 =25 and 961
so, 25 and 961 are squares of 5 and 31
5^2=25
31^2=961

answer Oct 27, 2017 by Mogadala Ramana



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