Q: What are the prime factors of the number 401,376,773?

 A: 7, 229, 337, 743

Why are those the prime factors of the number 401,376,773?

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 401,376,773

401,376,773
Factor Arrows
757,339,539
Factor Arrows
229250,391
Factor Arrows
337743

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:

7, 229, 337, 743

We can check our work by multiplying all of the prime factors together: 7 x 229 x 337 x 743 = 401,376,773

This can also be written as 71 x 2291 x 3371 x 7431 = 401,376,773

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


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