Q: What are the prime factors of the number 115,340,355?

 A: 3, 5, 13, 19, 1153

Why are those the prime factors of the number 115,340,355?

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 115,340,355

115,340,355
Factor Arrows
338,446,785
Factor Arrows
312,815,595
Factor Arrows
34,271,865
Factor Arrows
31,423,955
Factor Arrows
5284,791
Factor Arrows
1321,907
Factor Arrows
191,153

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:

3, 5, 13, 19, 1153

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 5 x 13 x 19 x 1,153 = 115,340,355

This can also be written as 34 x 51 x 131 x 191 x 1,1531 = 115,340,355

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


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