Q: What are the prime factors of the number 193,816?

 A: 2, 7, 3461

Why are those the prime factors of the number 193,816?

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 193,816

193,816
Factor Arrows
296,908
Factor Arrows
248,454
Factor Arrows
224,227
Factor Arrows
73,461

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, 7, 3461

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 3,461 = 193,816

This can also be written as 23 x 71 x 3,4611 = 193,816

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


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