Q: What are the prime factors of the number 210,042,302?

 A: 2, 19, 23, 29, 8287

Why are those the prime factors of the number 210,042,302?

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 210,042,302

210,042,302
Factor Arrows
2105,021,151
Factor Arrows
195,527,429
Factor Arrows
23240,323
Factor Arrows
298,287

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, 19, 23, 29, 8287

We can check our work by multiplying all of the prime factors together: 2 x 19 x 23 x 29 x 8,287 = 210,042,302

This can also be written as 21 x 191 x 231 x 291 x 8,2871 = 210,042,302

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


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