Q: What are the prime factors of the number 33,407,408?

 A: 2, 23, 3947

Why are those the prime factors of the number 33,407,408?

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 33,407,408

33,407,408
Factor Arrows
216,703,704
Factor Arrows
28,351,852
Factor Arrows
24,175,926
Factor Arrows
22,087,963
Factor Arrows
2390,781
Factor Arrows
233,947

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, 23, 3947

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 23 x 23 x 3,947 = 33,407,408

This can also be written as 24 x 232 x 3,9471 = 33,407,408

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


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