Q: What are the prime factors of the number 485,340,372?

 A: 2, 3, 11, 59, 20773

Why are those the prime factors of the number 485,340,372?

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 485,340,372

485,340,372
Factor Arrows
2242,670,186
Factor Arrows
2121,335,093
Factor Arrows
340,445,031
Factor Arrows
313,481,677
Factor Arrows
111,225,607
Factor Arrows
5920,773

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, 3, 11, 59, 20773

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 11 x 59 x 20,773 = 485,340,372

This can also be written as 22 x 32 x 111 x 591 x 20,7731 = 485,340,372

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


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