Q: What are the prime factors of the number 2,508,672?

 A: 2, 3, 47, 139

Why are those the prime factors of the number 2,508,672?

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 2,508,672

2,508,672
Factor Arrows
21,254,336
Factor Arrows
2627,168
Factor Arrows
2313,584
Factor Arrows
2156,792
Factor Arrows
278,396
Factor Arrows
239,198
Factor Arrows
219,599
Factor Arrows
36,533
Factor Arrows
47139

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, 47, 139

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 47 x 139 = 2,508,672

This can also be written as 27 x 31 x 471 x 1391 = 2,508,672

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


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