Q: What are the prime factors of the number 231,216,400?

 A: 2, 5, 578041

Why are those the prime factors of the number 231,216,400?

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 231,216,400

231,216,400
Factor Arrows
2115,608,200
Factor Arrows
257,804,100
Factor Arrows
228,902,050
Factor Arrows
214,451,025
Factor Arrows
52,890,205
Factor Arrows
5578,041

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, 578041

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 578,041 = 231,216,400

This can also be written as 24 x 52 x 578,0411 = 231,216,400

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


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