Q: What are the prime factors of the number 28,515,182?

 A: 2, 47, 61, 4973

Why are those the prime factors of the number 28,515,182?

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 28,515,182

28,515,182
Factor Arrows
214,257,591
Factor Arrows
47303,353
Factor Arrows
614,973

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, 47, 61, 4973

We can check our work by multiplying all of the prime factors together: 2 x 47 x 61 x 4,973 = 28,515,182

This can also be written as 21 x 471 x 611 x 4,9731 = 28,515,182

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


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