Q: What are the prime factors of the number 343,542,423?

 A: 3, 7, 61, 233, 1151

Why are those the prime factors of the number 343,542,423?

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 343,542,423

343,542,423
Factor Arrows
3114,514,141
Factor Arrows
716,359,163
Factor Arrows
61268,183
Factor Arrows
2331,151

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, 7, 61, 233, 1151

We can check our work by multiplying all of the prime factors together: 3 x 7 x 61 x 233 x 1,151 = 343,542,423

This can also be written as 31 x 71 x 611 x 2331 x 1,1511 = 343,542,423

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


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