Q: What are the prime factors of the number 206,412,255?

 A: 3, 5, 7, 43, 311

Why are those the prime factors of the number 206,412,255?

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 206,412,255

206,412,255
Factor Arrows
368,804,085
Factor Arrows
322,934,695
Factor Arrows
54,586,939
Factor Arrows
7655,277
Factor Arrows
793,611
Factor Arrows
713,373
Factor Arrows
43311

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:

3, 5, 7, 43, 311

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 7 x 7 x 7 x 43 x 311 = 206,412,255

This can also be written as 32 x 51 x 73 x 431 x 3111 = 206,412,255

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


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