Q: What are the prime factors of the number 158,346?

 A: 2, 3, 19, 463

Why are those the prime factors of the number 158,346?

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 158,346

158,346
Factor Arrows
279,173
Factor Arrows
326,391
Factor Arrows
38,797
Factor Arrows
19463

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, 463

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 19 x 463 = 158,346

This can also be written as 21 x 32 x 191 x 4631 = 158,346

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


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