What are the first three perfect squares that end on 4?

The first three perfect squares that end in 4 are 4, 64, and 144. These correspond to the squares of the integers 2 (2² = 4), 8 (8² = 64), and 12 (12² = 144). Perfect squares that end in 4 must be the squares of integers ending in either 2 or 8.