Q: What are the prime factors of the number 159,494,751?

 A: 3, 13, 29, 1741

Why are those the prime factors of the number 159,494,751?

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 159,494,751

159,494,751
Factor Arrows
353,164,917
Factor Arrows
317,721,639
Factor Arrows
35,907,213
Factor Arrows
31,969,071
Factor Arrows
3656,357
Factor Arrows
1350,489
Factor Arrows
291,741

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, 13, 29, 1741

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 13 x 29 x 1,741 = 159,494,751

This can also be written as 35 x 131 x 291 x 1,7411 = 159,494,751

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


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