Q: What are the prime factors of the number 1,279,632?

 A: 2, 3, 53, 503

Why are those the prime factors of the number 1,279,632?

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 1,279,632

1,279,632
Factor Arrows
2639,816
Factor Arrows
2319,908
Factor Arrows
2159,954
Factor Arrows
279,977
Factor Arrows
326,659
Factor Arrows
53503

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, 53, 503

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 53 x 503 = 1,279,632

This can also be written as 24 x 31 x 531 x 5031 = 1,279,632

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


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