Q: What are the prime factors of the number 46,245,312?

 A: 2, 3, 80287

Why are those the prime factors of the number 46,245,312?

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 46,245,312

46,245,312
Factor Arrows
223,122,656
Factor Arrows
211,561,328
Factor Arrows
25,780,664
Factor Arrows
22,890,332
Factor Arrows
21,445,166
Factor Arrows
2722,583
Factor Arrows
3240,861
Factor Arrows
380,287

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, 80287

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 3 x 3 x 80,287 = 46,245,312

This can also be written as 26 x 32 x 80,2871 = 46,245,312

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


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