Q: What are the prime factors of the number 4,618,768?

 A: 2, 7, 11, 23, 163

Why are those the prime factors of the number 4,618,768?

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 4,618,768

4,618,768
Factor Arrows
22,309,384
Factor Arrows
21,154,692
Factor Arrows
2577,346
Factor Arrows
2288,673
Factor Arrows
741,239
Factor Arrows
113,749
Factor Arrows
23163

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, 7, 11, 23, 163

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 11 x 23 x 163 = 4,618,768

This can also be written as 24 x 71 x 111 x 231 x 1631 = 4,618,768

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


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