Q: What are the prime factors of the number 28,274,950?

 A: 2, 5, 11, 101, 509

Why are those the prime factors of the number 28,274,950?

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 28,274,950

28,274,950
Factor Arrows
214,137,475
Factor Arrows
52,827,495
Factor Arrows
5565,499
Factor Arrows
1151,409
Factor Arrows
101509

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, 11, 101, 509

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 11 x 101 x 509 = 28,274,950

This can also be written as 21 x 52 x 111 x 1011 x 5091 = 28,274,950

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


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