Q: What are the prime factors of the number 194,340?

 A: 2, 3, 5, 41, 79

Why are those the prime factors of the number 194,340?

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 194,340

194,340
Factor Arrows
297,170
Factor Arrows
248,585
Factor Arrows
316,195
Factor Arrows
53,239
Factor Arrows
4179

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, 5, 41, 79

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 41 x 79 = 194,340

This can also be written as 22 x 31 x 51 x 411 x 791 = 194,340

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


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