Q: What are the prime factors of the number 4,857,768?

 A: 2, 3, 19, 53, 67

Why are those the prime factors of the number 4,857,768?

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 4,857,768

4,857,768
Factor Arrows
22,428,884
Factor Arrows
21,214,442
Factor Arrows
2607,221
Factor Arrows
3202,407
Factor Arrows
367,469
Factor Arrows
193,551
Factor Arrows
5367

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, 19, 53, 67

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 19 x 53 x 67 = 4,857,768

This can also be written as 23 x 32 x 191 x 531 x 671 = 4,857,768

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


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