DigiSqua3
Number Theory
Level
2
There are some digit Numbers whose every digit is non-zero and distinct perfect square.
What is the sum of the digits of those numbers?
The answer is 14.
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1 solution
It is given that every digit is distinct perfect square and non-zero, so we need perfect squares less than 10(because digit is less than 10).
There are only three such digits: 1, 4, 9. So sum of them = 1+4+9=14.