Q: What are the prime factors of the number 465,440?

 A: 2, 5, 2909

Why are those the prime factors of the number 465,440?

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 465,440

465,440
Factor Arrows
2232,720
Factor Arrows
2116,360
Factor Arrows
258,180
Factor Arrows
229,090
Factor Arrows
214,545
Factor Arrows
52,909

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, 2909

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 2,909 = 465,440

This can also be written as 25 x 51 x 2,9091 = 465,440

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


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