Q: What are the prime factors of the number 210,603,742?

 A: 2, 29, 211, 17209

Why are those the prime factors of the number 210,603,742?

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 210,603,742

210,603,742
Factor Arrows
2105,301,871
Factor Arrows
293,631,099
Factor Arrows
21117,209

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, 29, 211, 17209

We can check our work by multiplying all of the prime factors together: 2 x 29 x 211 x 17,209 = 210,603,742

This can also be written as 21 x 291 x 2111 x 17,2091 = 210,603,742

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


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