Q: What are the prime factors of the number 10,786,678?

 A: 2, 7, 23, 139, 241

Why are those the prime factors of the number 10,786,678?

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 10,786,678

10,786,678
Factor Arrows
25,393,339
Factor Arrows
7770,477
Factor Arrows
2333,499
Factor Arrows
139241

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, 7, 23, 139, 241

We can check our work by multiplying all of the prime factors together: 2 x 7 x 23 x 139 x 241 = 10,786,678

This can also be written as 21 x 71 x 231 x 1391 x 2411 = 10,786,678

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


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