What two numbers multiply to 663 and add up to 64?

Here we answer the question: "What two numbers multiply to 663 and add up to 64?"

The answer to your question is:

13 and 51

Below we illustrate and prove that 13 and 51 multiply to 663 and add up to 64:

13 × 51 = 663
13 + 51 = 64

Are you asking because you are trying to figure out how to factor the following quadratic equation?

x² + 64x + 663 = 0

If so, the solution to factor the quadratic equation above is:

(x + 13 ) (x + 51)

To summarize, since 13 and 51 multiply to 663 and add up 64, you know that the following is true:

x² + 64x + 663 = (x + 13 ) (x + 51)

Multiply To One Number and Add Up To Another
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