Q: What are the prime factors of the number 105,508,616?

 A: 2, 311, 42407

Why are those the prime factors of the number 105,508,616?

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 105,508,616

105,508,616
Factor Arrows
252,754,308
Factor Arrows
226,377,154
Factor Arrows
213,188,577
Factor Arrows
31142,407

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, 311, 42407

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 311 x 42,407 = 105,508,616

This can also be written as 23 x 3111 x 42,4071 = 105,508,616

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


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