Q: What are the prime factors of the number 142,904?

 A: 2, 17863

Why are those the prime factors of the number 142,904?

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 142,904

142,904
Factor Arrows
271,452
Factor Arrows
235,726
Factor Arrows
217,863

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, 17863

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 17,863 = 142,904

This can also be written as 23 x 17,8631 = 142,904

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


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