MathDB
Squarish or Not?

Source:

January 2, 2006
inequalities

Problem Statement

A six digit number (base 10) is squarish if it satisfies the following conditions: (i) none of its digits are zero; (ii) it is a perfect square; and (iii) the first of two digits, the middle two digits and the last two digits of the number are all perfect squares when considered as two digit numbers. How many squarish numbers are there? (A) 0(B) 2(C) 3(D) 8(E) 9\text{(A)} \ 0 \qquad \text{(B)} \ 2 \qquad \text{(C)} \ 3 \qquad \text{(D)} \ 8 \qquad \text{(E)} \ 9
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