Q: What are the prime factors of the number 208,709,547?

 A: 3, 19, 79, 46349

Why are those the prime factors of the number 208,709,547?

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 208,709,547

208,709,547
Factor Arrows
369,569,849
Factor Arrows
193,661,571
Factor Arrows
7946,349

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:

3, 19, 79, 46349

We can check our work by multiplying all of the prime factors together: 3 x 19 x 79 x 46,349 = 208,709,547

This can also be written as 31 x 191 x 791 x 46,3491 = 208,709,547

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


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