Q: What are the prime factors of the number 33,431,400?

 A: 2, 3, 5, 41, 151

Why are those the prime factors of the number 33,431,400?

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 33,431,400

33,431,400
Factor Arrows
216,715,700
Factor Arrows
28,357,850
Factor Arrows
24,178,925
Factor Arrows
31,392,975
Factor Arrows
3464,325
Factor Arrows
3154,775
Factor Arrows
530,955
Factor Arrows
56,191
Factor Arrows
41151

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, 41, 151

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 5 x 5 x 41 x 151 = 33,431,400

This can also be written as 23 x 33 x 52 x 411 x 1511 = 33,431,400

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


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