Q: What are the prime factors of the number 401,442,024?

 A: 2, 3, 67, 421, 593

Why are those the prime factors of the number 401,442,024?

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 401,442,024

401,442,024
Factor Arrows
2200,721,012
Factor Arrows
2100,360,506
Factor Arrows
250,180,253
Factor Arrows
316,726,751
Factor Arrows
67249,653
Factor Arrows
421593

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, 67, 421, 593

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 67 x 421 x 593 = 401,442,024

This can also be written as 23 x 31 x 671 x 4211 x 5931 = 401,442,024

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


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