Q: What are the prime factors of the number 401,332,302?

 A: 2, 3, 7, 3185177

Why are those the prime factors of the number 401,332,302?

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 401,332,302

401,332,302
Factor Arrows
2200,666,151
Factor Arrows
366,888,717
Factor Arrows
322,296,239
Factor Arrows
73,185,177

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, 7, 3185177

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 3,185,177 = 401,332,302

This can also be written as 21 x 32 x 71 x 3,185,1771 = 401,332,302

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


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