Q: What are the prime factors of the number 162,346,653?

 A: 3, 7, 277, 443

Why are those the prime factors of the number 162,346,653?

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 162,346,653

162,346,653
Factor Arrows
354,115,551
Factor Arrows
318,038,517
Factor Arrows
36,012,839
Factor Arrows
7858,977
Factor Arrows
7122,711
Factor Arrows
277443

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, 7, 277, 443

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 7 x 7 x 277 x 443 = 162,346,653

This can also be written as 33 x 72 x 2771 x 4431 = 162,346,653

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


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