Q: What are the prime factors of the number 118,565,775?

 A: 3, 5, 29, 673

Why are those the prime factors of the number 118,565,775?

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 118,565,775

118,565,775
Factor Arrows
339,521,925
Factor Arrows
313,173,975
Factor Arrows
34,391,325
Factor Arrows
31,463,775
Factor Arrows
3487,925
Factor Arrows
597,585
Factor Arrows
519,517
Factor Arrows
29673

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, 29, 673

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 5 x 5 x 29 x 673 = 118,565,775

This can also be written as 35 x 52 x 291 x 6731 = 118,565,775

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


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