Q: What are the prime factors of the number 2,493,312?

 A: 2, 3, 43, 151

Why are those the prime factors of the number 2,493,312?

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 2,493,312

2,493,312
Factor Arrows
21,246,656
Factor Arrows
2623,328
Factor Arrows
2311,664
Factor Arrows
2155,832
Factor Arrows
277,916
Factor Arrows
238,958
Factor Arrows
219,479
Factor Arrows
36,493
Factor Arrows
43151

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, 43, 151

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 43 x 151 = 2,493,312

This can also be written as 27 x 31 x 431 x 1511 = 2,493,312

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


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