Q: What are the prime factors of the number 4,545,536?

 A: 2, 23, 193

Why are those the prime factors of the number 4,545,536?

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 4,545,536

4,545,536
Factor Arrows
22,272,768
Factor Arrows
21,136,384
Factor Arrows
2568,192
Factor Arrows
2284,096
Factor Arrows
2142,048
Factor Arrows
271,024
Factor Arrows
235,512
Factor Arrows
217,756
Factor Arrows
28,878
Factor Arrows
24,439
Factor Arrows
23193

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, 23, 193

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 23 x 193 = 4,545,536

This can also be written as 210 x 231 x 1931 = 4,545,536

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


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