Q: What are the prime factors of the number 345,201,660?

 A: 2, 3, 5, 17, 97, 1163

Why are those the prime factors of the number 345,201,660?

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 345,201,660

345,201,660
Factor Arrows
2172,600,830
Factor Arrows
286,300,415
Factor Arrows
328,766,805
Factor Arrows
39,588,935
Factor Arrows
51,917,787
Factor Arrows
17112,811
Factor Arrows
971,163

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, 17, 97, 1163

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 17 x 97 x 1,163 = 345,201,660

This can also be written as 22 x 32 x 51 x 171 x 971 x 1,1631 = 345,201,660

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


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