Q: What are the prime factors of the number 32,638,788?

 A: 2, 3, 7, 13, 41

Why are those the prime factors of the number 32,638,788?

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 32,638,788

32,638,788
Factor Arrows
216,319,394
Factor Arrows
28,159,697
Factor Arrows
32,719,899
Factor Arrows
3906,633
Factor Arrows
3302,211
Factor Arrows
3100,737
Factor Arrows
333,579
Factor Arrows
311,193
Factor Arrows
33,731
Factor Arrows
7533
Factor Arrows
1341

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, 7, 13, 41

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 7 x 13 x 41 = 32,638,788

This can also be written as 22 x 37 x 71 x 131 x 411 = 32,638,788

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


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