What 2 square numbers make 6409?

"What 2 square numbers make 6409?" means "What 2 square numbers added together equal 6409?" In other words, "What two square numbers when added together have a sum of 6409?"

First, note that a square number is what you get when you multiply a number by itself, which means that the square root of a square number will equal a whole number.

Thus, we are solving A and B in this equation where both A and B are square numbers.

A + B = 6409

We found the following combinations of two square numbers that when added together equal 6409:

9 + 6400 = 6409
784 + 5625 = 6409
1225 + 5184 = 6409
2809 + 3600 = 6409

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What 2 square numbers make 6410?
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