What two numbers multiply to 520 and add up to 53?

Here we answer the question: "What two numbers multiply to 520 and add up to 53?"

The answer to your question is:

13 and 40

Below we illustrate and prove that 13 and 40 multiply to 520 and add up to 53:

13 × 40 = 520
13 + 40 = 53

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

x² + 53x + 520 = 0

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

(x + 13 ) (x + 40)

To summarize, since 13 and 40 multiply to 520 and add up 53, you know that the following is true:

x² + 53x + 520 = (x + 13 ) (x + 40)

Multiply To One Number and Add Up To Another
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