Q: What are the prime factors of the number 400,341,224?

 A: 2, 53, 89, 103

Why are those the prime factors of the number 400,341,224?

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 400,341,224

400,341,224
Factor Arrows
2200,170,612
Factor Arrows
2100,085,306
Factor Arrows
250,042,653
Factor Arrows
53944,201
Factor Arrows
8910,609
Factor Arrows
103103

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, 53, 89, 103

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 53 x 89 x 103 x 103 = 400,341,224

This can also be written as 23 x 531 x 891 x 1032 = 400,341,224

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


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