Q: What are the prime factors of the number 42,906,752?

 A: 2, 7, 6841

Why are those the prime factors of the number 42,906,752?

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 42,906,752

42,906,752
Factor Arrows
221,453,376
Factor Arrows
210,726,688
Factor Arrows
25,363,344
Factor Arrows
22,681,672
Factor Arrows
21,340,836
Factor Arrows
2670,418
Factor Arrows
2335,209
Factor Arrows
747,887
Factor Arrows
76,841

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, 7, 6841

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 7 x 7 x 6,841 = 42,906,752

This can also be written as 27 x 72 x 6,8411 = 42,906,752

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


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