Q: What are the prime factors of the number 172,129,434?

 A: 2, 3, 61, 470299

Why are those the prime factors of the number 172,129,434?

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 172,129,434

172,129,434
Factor Arrows
286,064,717
Factor Arrows
328,688,239
Factor Arrows
61470,299

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, 61, 470299

We can check our work by multiplying all of the prime factors together: 2 x 3 x 61 x 470,299 = 172,129,434

This can also be written as 21 x 31 x 611 x 470,2991 = 172,129,434

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


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