Q: What are the prime factors of the number 401,261,046?

 A: 2, 3, 109, 613549

Why are those the prime factors of the number 401,261,046?

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 401,261,046

401,261,046
Factor Arrows
2200,630,523
Factor Arrows
366,876,841
Factor Arrows
109613,549

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, 109, 613549

We can check our work by multiplying all of the prime factors together: 2 x 3 x 109 x 613,549 = 401,261,046

This can also be written as 21 x 31 x 1091 x 613,5491 = 401,261,046

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


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