Q: What are the prime factors of the number 28,686,846?

 A: 2, 3, 19, 251639

Why are those the prime factors of the number 28,686,846?

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 28,686,846

28,686,846
Factor Arrows
214,343,423
Factor Arrows
34,781,141
Factor Arrows
19251,639

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, 19, 251639

We can check our work by multiplying all of the prime factors together: 2 x 3 x 19 x 251,639 = 28,686,846

This can also be written as 21 x 31 x 191 x 251,6391 = 28,686,846

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


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