Q: What are the prime factors of the number 246,205,638?

 A: 2, 3, 7, 61, 103, 311

Why are those the prime factors of the number 246,205,638?

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 246,205,638

246,205,638
Factor Arrows
2123,102,819
Factor Arrows
341,034,273
Factor Arrows
313,678,091
Factor Arrows
71,954,013
Factor Arrows
6132,033
Factor Arrows
103311

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, 7, 61, 103, 311

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 61 x 103 x 311 = 246,205,638

This can also be written as 21 x 32 x 71 x 611 x 1031 x 3111 = 246,205,638

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


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