Q: What are the prime factors of the number 135,077,800?

 A: 2, 5, 11, 13, 4723

Why are those the prime factors of the number 135,077,800?

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 135,077,800

135,077,800
Factor Arrows
267,538,900
Factor Arrows
233,769,450
Factor Arrows
216,884,725
Factor Arrows
53,376,945
Factor Arrows
5675,389
Factor Arrows
1161,399
Factor Arrows
134,723

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, 13, 4723

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 5 x 11 x 13 x 4,723 = 135,077,800

This can also be written as 23 x 52 x 111 x 131 x 4,7231 = 135,077,800

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


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