Q: What are the prime factors of the number 33,455,100?

 A: 2, 3, 5, 7, 89, 179

Why are those the prime factors of the number 33,455,100?

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 33,455,100

33,455,100
Factor Arrows
216,727,550
Factor Arrows
28,363,775
Factor Arrows
32,787,925
Factor Arrows
5557,585
Factor Arrows
5111,517
Factor Arrows
715,931
Factor Arrows
89179

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, 7, 89, 179

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 5 x 7 x 89 x 179 = 33,455,100

This can also be written as 22 x 31 x 52 x 71 x 891 x 1791 = 33,455,100

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


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