Q: What are the prime factors of the number 443,253,200?

 A: 2, 5, 13, 79, 83

Why are those the prime factors of the number 443,253,200?

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 443,253,200

443,253,200
Factor Arrows
2221,626,600
Factor Arrows
2110,813,300
Factor Arrows
255,406,650
Factor Arrows
227,703,325
Factor Arrows
55,540,665
Factor Arrows
51,108,133
Factor Arrows
1385,241
Factor Arrows
136,557
Factor Arrows
7983

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, 5, 13, 79, 83

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 13 x 13 x 79 x 83 = 443,253,200

This can also be written as 24 x 52 x 132 x 791 x 831 = 443,253,200

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


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