Q: What are the prime factors of the number 42,037,216?

 A: 2, 13, 101051

Why are those the prime factors of the number 42,037,216?

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 42,037,216

42,037,216
Factor Arrows
221,018,608
Factor Arrows
210,509,304
Factor Arrows
25,254,652
Factor Arrows
22,627,326
Factor Arrows
21,313,663
Factor Arrows
13101,051

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, 13, 101051

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 13 x 101,051 = 42,037,216

This can also be written as 25 x 131 x 101,0511 = 42,037,216

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


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