Q: What are the prime factors of the number 106,398?

 A: 2, 3, 23, 257

Why are those the prime factors of the number 106,398?

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 106,398

106,398
Factor Arrows
253,199
Factor Arrows
317,733
Factor Arrows
35,911
Factor Arrows
23257

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, 23, 257

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 23 x 257 = 106,398

This can also be written as 21 x 32 x 231 x 2571 = 106,398

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


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