Q: What are the prime factors of the number 108,430?

 A: 2, 5, 7, 1549

Why are those the prime factors of the number 108,430?

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 108,430

108,430
Factor Arrows
254,215
Factor Arrows
510,843
Factor Arrows
71,549

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, 5, 7, 1549

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 1,549 = 108,430

This can also be written as 21 x 51 x 71 x 1,5491 = 108,430

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


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