Q: What are the prime factors of the number 210,262,320?

 A: 2, 3, 5, 23, 12697

Why are those the prime factors of the number 210,262,320?

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 210,262,320

210,262,320
Factor Arrows
2105,131,160
Factor Arrows
252,565,580
Factor Arrows
226,282,790
Factor Arrows
213,141,395
Factor Arrows
34,380,465
Factor Arrows
31,460,155
Factor Arrows
5292,031
Factor Arrows
2312,697

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, 23, 12697

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 5 x 23 x 12,697 = 210,262,320

This can also be written as 24 x 32 x 51 x 231 x 12,6971 = 210,262,320

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


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