Q: What are the prime factors of the number 33,205,500?

 A: 2, 3, 5, 47, 157

Why are those the prime factors of the number 33,205,500?

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 33,205,500

33,205,500
Factor Arrows
216,602,750
Factor Arrows
28,301,375
Factor Arrows
32,767,125
Factor Arrows
3922,375
Factor Arrows
5184,475
Factor Arrows
536,895
Factor Arrows
57,379
Factor Arrows
47157

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, 5, 47, 157

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 5 x 5 x 47 x 157 = 33,205,500

This can also be written as 22 x 32 x 53 x 471 x 1571 = 33,205,500

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


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