Q: What are the prime factors of the number 245,136,208?

 A: 2, 23, 47, 14173

Why are those the prime factors of the number 245,136,208?

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 245,136,208

245,136,208
Factor Arrows
2122,568,104
Factor Arrows
261,284,052
Factor Arrows
230,642,026
Factor Arrows
215,321,013
Factor Arrows
23666,131
Factor Arrows
4714,173

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, 23, 47, 14173

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 23 x 47 x 14,173 = 245,136,208

This can also be written as 24 x 231 x 471 x 14,1731 = 245,136,208

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


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