Q: What are the prime factors of the number 290,480?

 A: 2, 5, 3631

Why are those the prime factors of the number 290,480?

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 290,480

290,480
Factor Arrows
2145,240
Factor Arrows
272,620
Factor Arrows
236,310
Factor Arrows
218,155
Factor Arrows
53,631

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, 5, 3631

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 3,631 = 290,480

This can also be written as 24 x 51 x 3,6311 = 290,480

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


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