Q: What are the prime factors of the number 2,407,904?

 A: 2, 47, 1601

Why are those the prime factors of the number 2,407,904?

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 2,407,904

2,407,904
Factor Arrows
21,203,952
Factor Arrows
2601,976
Factor Arrows
2300,988
Factor Arrows
2150,494
Factor Arrows
275,247
Factor Arrows
471,601

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, 47, 1601

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 47 x 1,601 = 2,407,904

This can also be written as 25 x 471 x 1,6011 = 2,407,904

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


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