What 2 square numbers subtract to make 1391?

What two square numbers subtract to make 1391? In other words, when you subtract one square number from another square number, the answer is 1391. What are the two square numbers?

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, this is what we are solving:

A² - B² = 1391

We solved the equation above and found this to be true:

60² - 47² = 1391

60² is 3600 and 47² is 2209, therefore the answer to the question "What 2 square numbers subtract to make 1391?" is 3600 and 2209 as illustrated below:

3600 - 2209 = 1391

Note that there may be more than one solution to a problem like this. Above, we found the lowest combination of square numbers that subtract to 1391. Below we list alternate solutions if available.

484416 - 483025 = 1391

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