Q: What are the prime factors of the number 116,380?

 A: 2, 5, 11, 23

Why are those the prime factors of the number 116,380?

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 116,380

116,380
Factor Arrows
258,190
Factor Arrows
229,095
Factor Arrows
55,819
Factor Arrows
11529
Factor Arrows
2323

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, 5, 11, 23

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 11 x 23 x 23 = 116,380

This can also be written as 22 x 51 x 111 x 232 = 116,380

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


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