Q: What are the prime factors of the number 4,285,008?

 A: 2, 3, 7, 13, 109

Why are those the prime factors of the number 4,285,008?

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 4,285,008

4,285,008
Factor Arrows
22,142,504
Factor Arrows
21,071,252
Factor Arrows
2535,626
Factor Arrows
2267,813
Factor Arrows
389,271
Factor Arrows
329,757
Factor Arrows
39,919
Factor Arrows
71,417
Factor Arrows
13109

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, 3, 7, 13, 109

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 7 x 13 x 109 = 4,285,008

This can also be written as 24 x 33 x 71 x 131 x 1091 = 4,285,008

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


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