Q: What are the prime factors of the number 401,404,350?

 A: 2, 3, 5, 41, 65269

Why are those the prime factors of the number 401,404,350?

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 401,404,350

401,404,350
Factor Arrows
2200,702,175
Factor Arrows
366,900,725
Factor Arrows
513,380,145
Factor Arrows
52,676,029
Factor Arrows
4165,269

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, 5, 41, 65269

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 41 x 65,269 = 401,404,350

This can also be written as 21 x 31 x 52 x 411 x 65,2691 = 401,404,350

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


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