Q: What are the prime factors of the number 34,423,144?

 A: 2, 7, 31, 79, 251

Why are those the prime factors of the number 34,423,144?

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 34,423,144

34,423,144
Factor Arrows
217,211,572
Factor Arrows
28,605,786
Factor Arrows
24,302,893
Factor Arrows
7614,699
Factor Arrows
3119,829
Factor Arrows
79251

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, 31, 79, 251

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 31 x 79 x 251 = 34,423,144

This can also be written as 23 x 71 x 311 x 791 x 2511 = 34,423,144

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


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