What number multiplied by itself equals 1600?

Here we will answer: What number multiplied by itself gives 1600? In other words, what number times itself will equal 1600?

We have identified many different ways of getting the answer to this question:

Algebra Method:
Make an algebra equation and solve for x:

x • x = 1600
x = 40

Square Root Method:
Take the square root of 1600 to get the answer:

√1600 = 40

Exponent Method:
Make the base 1600 and the exponent 0.5 to get the answer:

1600^0.5 = 40

There you go! Now you know how to calculate "What number multiplied by itself equals 1600?"

The bottom line is that 40 times itself equals 1600 as illustrated here:

40 x 40 = 1600

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The answer on this page is rounded to the nearest thousandth, if necessary.