Q: What are the prime factors of the number 128,773,611?

 A: 3, 97, 49169

Why are those the prime factors of the number 128,773,611?

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 128,773,611

128,773,611
Factor Arrows
342,924,537
Factor Arrows
314,308,179
Factor Arrows
34,769,393
Factor Arrows
9749,169

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, 97, 49169

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 97 x 49,169 = 128,773,611

This can also be written as 33 x 971 x 49,1691 = 128,773,611

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


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