Q: What are the prime factors of the number 497,904?

 A: 2, 3, 11, 23, 41

Why are those the prime factors of the number 497,904?

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 497,904

497,904
Factor Arrows
2248,952
Factor Arrows
2124,476
Factor Arrows
262,238
Factor Arrows
231,119
Factor Arrows
310,373
Factor Arrows
11943
Factor Arrows
2341

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, 11, 23, 41

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 11 x 23 x 41 = 497,904

This can also be written as 24 x 31 x 111 x 231 x 411 = 497,904

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


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