Q: What are the prime factors of the number 201,021,264?

 A: 2, 3, 149, 347

Why are those the prime factors of the number 201,021,264?

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 201,021,264

201,021,264
Factor Arrows
2100,510,632
Factor Arrows
250,255,316
Factor Arrows
225,127,658
Factor Arrows
212,563,829
Factor Arrows
34,187,943
Factor Arrows
31,395,981
Factor Arrows
3465,327
Factor Arrows
3155,109
Factor Arrows
351,703
Factor Arrows
149347

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, 149, 347

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 3 x 3 x 3 x 149 x 347 = 201,021,264

This can also be written as 24 x 35 x 1491 x 3471 = 201,021,264

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


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