Q: What are the prime factors of the number 29,142,909?

 A: 3, 23, 15643

Why are those the prime factors of the number 29,142,909?

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 29,142,909

29,142,909
Factor Arrows
39,714,303
Factor Arrows
33,238,101
Factor Arrows
31,079,367
Factor Arrows
3359,789
Factor Arrows
2315,643

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, 23, 15643

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 23 x 15,643 = 29,142,909

This can also be written as 34 x 231 x 15,6431 = 29,142,909

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


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