Q: What are the prime factors of the number 401,023,101?

 A: 3, 19, 23, 113, 2707

Why are those the prime factors of the number 401,023,101?

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 401,023,101

401,023,101
Factor Arrows
3133,674,367
Factor Arrows
197,035,493
Factor Arrows
23305,891
Factor Arrows
1132,707

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:

3, 19, 23, 113, 2707

We can check our work by multiplying all of the prime factors together: 3 x 19 x 23 x 113 x 2,707 = 401,023,101

This can also be written as 31 x 191 x 231 x 1131 x 2,7071 = 401,023,101

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


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