3 + 4 = 7..............a triangle and a square.....................3 and 4................sum and product are the 1st successive pair of numbers........whose sum and product are more than one digit apart............4 is where the jump happens........like 4d........beyond the physical.......


efinition of

Square Number

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The number we get after multiplying an integer (not a fraction) by itself.

Example: 4 × 4 = 16, so 16 is a square number.

Here are the first few square numbers:
0 (=0×0)
1 (=1×1)
4 (=2×2)
9 (=3×3)
16 (=4×4)
25 (=5×5)