Q: What are the prime factors of the number 223,150,250?

 A: 2, 5, 19, 109, 431

Why are those the prime factors of the number 223,150,250?

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 223,150,250

223,150,250
Factor Arrows
2111,575,125
Factor Arrows
522,315,025
Factor Arrows
54,463,005
Factor Arrows
5892,601
Factor Arrows
1946,979
Factor Arrows
109431

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, 19, 109, 431

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 5 x 19 x 109 x 431 = 223,150,250

This can also be written as 21 x 53 x 191 x 1091 x 4311 = 223,150,250

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


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