Q: What are the prime factors of the number 203,031,144?

 A: 2, 3, 157, 5987

Why are those the prime factors of the number 203,031,144?

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 203,031,144

203,031,144
Factor Arrows
2101,515,572
Factor Arrows
250,757,786
Factor Arrows
225,378,893
Factor Arrows
38,459,631
Factor Arrows
32,819,877
Factor Arrows
3939,959
Factor Arrows
1575,987

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, 157, 5987

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 157 x 5,987 = 203,031,144

This can also be written as 23 x 33 x 1571 x 5,9871 = 203,031,144

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


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