Q: What are the prime factors of the number 626,040?

 A: 2, 3, 5, 37, 47

Why are those the prime factors of the number 626,040?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 626,040

626,040
Factor Arrows
2313,020
Factor Arrows
2156,510
Factor Arrows
278,255
Factor Arrows
326,085
Factor Arrows
38,695
Factor Arrows
51,739
Factor Arrows
3747

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 5, 37, 47

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 37 x 47 = 626,040

This can also be written as 23 x 32 x 51 x 371 x 471 = 626,040

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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