Q: What are the prime factors of the number 173,042,492?

 A: 2, 7, 43, 101, 1423

Why are those the prime factors of the number 173,042,492?

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 173,042,492

173,042,492
Factor Arrows
286,521,246
Factor Arrows
243,260,623
Factor Arrows
76,180,089
Factor Arrows
43143,723
Factor Arrows
1011,423

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, 7, 43, 101, 1423

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 43 x 101 x 1,423 = 173,042,492

This can also be written as 22 x 71 x 431 x 1011 x 1,4231 = 173,042,492

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


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