Q: What are the prime factors of the number 202,130,400?

 A: 2, 3, 5, 84221

Why are those the prime factors of the number 202,130,400?

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 202,130,400

202,130,400
Factor Arrows
2101,065,200
Factor Arrows
250,532,600
Factor Arrows
225,266,300
Factor Arrows
212,633,150
Factor Arrows
26,316,575
Factor Arrows
32,105,525
Factor Arrows
5421,105
Factor Arrows
584,221

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, 84221

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 5 x 84,221 = 202,130,400

This can also be written as 25 x 31 x 52 x 84,2211 = 202,130,400

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


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