Q: What are the prime factors of the number 28,864,269?

 A: 3, 7, 71, 239

Why are those the prime factors of the number 28,864,269?

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 28,864,269

28,864,269
Factor Arrows
39,621,423
Factor Arrows
33,207,141
Factor Arrows
31,069,047
Factor Arrows
3356,349
Factor Arrows
3118,783
Factor Arrows
716,969
Factor Arrows
71239

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, 71, 239

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 7 x 71 x 239 = 28,864,269

This can also be written as 35 x 71 x 711 x 2391 = 28,864,269

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


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