Q: What are the prime factors of the number 383,291,919?

 A: 3, 53, 29761

Why are those the prime factors of the number 383,291,919?

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 383,291,919

383,291,919
Factor Arrows
3127,763,973
Factor Arrows
342,587,991
Factor Arrows
314,195,997
Factor Arrows
34,731,999
Factor Arrows
31,577,333
Factor Arrows
5329,761

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, 53, 29761

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 53 x 29,761 = 383,291,919

This can also be written as 35 x 531 x 29,7611 = 383,291,919

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


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