+0

0
144
2

Some perfect squares (such as 121) have a digit sum $(1 + 2 + 1 = 4)$ that is equal to the square of the digit sum of their square root $(\sqrt{121}=11$, and $(1 + 1)^2 = 4)$. What is the smallest perfect square greater than 100 that does not have this property?

Jun 23, 2022

#1
0

Jun 23, 2022
#2
+124707
+1

196  =  1 + 6 + 9  =  16

sqrt (196) = 14

(1 + 4)^2  =  25

Jun 23, 2022