Q: What are the prime factors of the number 203,213,010?

 A: 2, 3, 5, 7, 11, 13, 67, 101

Why are those the prime factors of the number 203,213,010?

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 203,213,010

203,213,010
Factor Arrows
2101,606,505
Factor Arrows
333,868,835
Factor Arrows
56,773,767
Factor Arrows
7967,681
Factor Arrows
1187,971
Factor Arrows
136,767
Factor Arrows
67101

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, 7, 11, 13, 67, 101

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 7 x 11 x 13 x 67 x 101 = 203,213,010

This can also be written as 21 x 31 x 51 x 71 x 111 x 131 x 671 x 1011 = 203,213,010

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


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