Q: What are the prime factors of the number 101,321,442?

 A: 2, 3, 317, 1973

Why are those the prime factors of the number 101,321,442?

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 101,321,442

101,321,442
Factor Arrows
250,660,721
Factor Arrows
316,886,907
Factor Arrows
35,628,969
Factor Arrows
31,876,323
Factor Arrows
3625,441
Factor Arrows
3171,973

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, 317, 1973

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 317 x 1,973 = 101,321,442

This can also be written as 21 x 34 x 3171 x 1,9731 = 101,321,442

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


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