What is 639 with an exponent of 2?

639 with an exponent of 2 means that 639 is the base (b) and 2 is the exponent (n).

Here is how you would display the number 639 with an exponent of 2 in mathematical terms:

bⁿ ⇒ 639²

Furthermore, bⁿ means to multiply b by b, n times.

So to calculate 639 with an exponent of 2, you can write 639, 2 times with a multiplication symbol between them like so:

639 · 639

When we multiply them together, we get the answer to 639 with an exponent of 2.

639² = 408,321

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