Q: What are the prime factors of the number 108,287,178?

 A: 2, 3, 17, 73, 14543

Why are those the prime factors of the number 108,287,178?

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 108,287,178

108,287,178
Factor Arrows
254,143,589
Factor Arrows
318,047,863
Factor Arrows
171,061,639
Factor Arrows
7314,543

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, 17, 73, 14543

We can check our work by multiplying all of the prime factors together: 2 x 3 x 17 x 73 x 14,543 = 108,287,178

This can also be written as 21 x 31 x 171 x 731 x 14,5431 = 108,287,178

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


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