Q: What are the prime factors of the number 40,237,056?

 A: 2, 3, 37, 59

Why are those the prime factors of the number 40,237,056?

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 40,237,056

40,237,056
Factor Arrows
220,118,528
Factor Arrows
210,059,264
Factor Arrows
25,029,632
Factor Arrows
22,514,816
Factor Arrows
21,257,408
Factor Arrows
2628,704
Factor Arrows
2314,352
Factor Arrows
2157,176
Factor Arrows
278,588
Factor Arrows
239,294
Factor Arrows
219,647
Factor Arrows
36,549
Factor Arrows
32,183
Factor Arrows
3759

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, 37, 59

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 2 x 2 x 2 x 2 x 3 x 3 x 37 x 59 = 40,237,056

This can also be written as 211 x 32 x 371 x 591 = 40,237,056

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


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