Q: What are the prime factors of the number 401,241,608?

 A: 2, 50155201

Why are those the prime factors of the number 401,241,608?

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 401,241,608

401,241,608
Factor Arrows
2200,620,804
Factor Arrows
2100,310,402
Factor Arrows
250,155,201

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, 50155201

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 50,155,201 = 401,241,608

This can also be written as 23 x 50,155,2011 = 401,241,608

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


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