Q: What are the prime factors of the number 208,096,824?

 A: 2, 3, 13, 23, 47, 617

Why are those the prime factors of the number 208,096,824?

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 208,096,824

208,096,824
Factor Arrows
2104,048,412
Factor Arrows
252,024,206
Factor Arrows
226,012,103
Factor Arrows
38,670,701
Factor Arrows
13666,977
Factor Arrows
2328,999
Factor Arrows
47617

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, 13, 23, 47, 617

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 13 x 23 x 47 x 617 = 208,096,824

This can also be written as 23 x 31 x 131 x 231 x 471 x 6171 = 208,096,824

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


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