Q: What are the prime factors of the number 231,522,400?

 A: 2, 5, 251, 1153

Why are those the prime factors of the number 231,522,400?

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 231,522,400

231,522,400
Factor Arrows
2115,761,200
Factor Arrows
257,880,600
Factor Arrows
228,940,300
Factor Arrows
214,470,150
Factor Arrows
27,235,075
Factor Arrows
51,447,015
Factor Arrows
5289,403
Factor Arrows
2511,153

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, 251, 1153

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 5 x 251 x 1,153 = 231,522,400

This can also be written as 25 x 52 x 2511 x 1,1531 = 231,522,400

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


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