Q: What are the prime factors of the number 301,551,432?

 A: 2, 3, 7, 13, 19, 43

Why are those the prime factors of the number 301,551,432?

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 301,551,432

301,551,432
Factor Arrows
2150,775,716
Factor Arrows
275,387,858
Factor Arrows
237,693,929
Factor Arrows
312,564,643
Factor Arrows
71,794,949
Factor Arrows
13138,073
Factor Arrows
1310,621
Factor Arrows
13817
Factor Arrows
1943

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, 13, 19, 43

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 13 x 13 x 13 x 19 x 43 = 301,551,432

This can also be written as 23 x 31 x 71 x 133 x 191 x 431 = 301,551,432

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


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