What 2 square numbers subtract to make 3991?

What two square numbers subtract to make 3991? In other words, when you subtract one square number from another square number, the answer is 3991. 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 = 3991

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

160² - 147² = 3991

160² is 25600 and 147² is 21609, therefore the answer to the question "What 2 square numbers subtract to make 3991?" is 25600 and 21609 as illustrated below:

25600 - 21609 = 3991

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 3991. Below we list alternate solutions if available.

What Two Square Numbers Subtract To Make Calculator
Enter another number here to find what two square numbers subtract to make that number.

What 2 square numbers subtract to make 3992?
Go here for the next problem on our list.