What 2 square numbers subtract to make 1861?

What two square numbers subtract to make 1861? In other words, when you subtract one square number from another square number, the answer is 1861. 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 = 1861

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

931² - 930² = 1861

931² is 866761 and 930² is 864900, therefore the answer to the question "What 2 square numbers subtract to make 1861?" is 866761 and 864900 as illustrated below:

866761 - 864900 = 1861

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 1861. Below we list alternate solutions if available.

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