Q: What are the prime factors of the number 33,505,540?

 A: 2, 5, 53, 73, 433

Why are those the prime factors of the number 33,505,540?

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 33,505,540

33,505,540
Factor Arrows
216,752,770
Factor Arrows
28,376,385
Factor Arrows
51,675,277
Factor Arrows
5331,609
Factor Arrows
73433

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, 5, 53, 73, 433

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 53 x 73 x 433 = 33,505,540

This can also be written as 22 x 51 x 531 x 731 x 4331 = 33,505,540

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


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