Q: What are the prime factors of the number 2,814,900?

 A: 2, 3, 5, 11, 853

Why are those the prime factors of the number 2,814,900?

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 2,814,900

2,814,900
Factor Arrows
21,407,450
Factor Arrows
2703,725
Factor Arrows
3234,575
Factor Arrows
546,915
Factor Arrows
59,383
Factor Arrows
11853

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, 3, 5, 11, 853

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 5 x 11 x 853 = 2,814,900

This can also be written as 22 x 31 x 52 x 111 x 8531 = 2,814,900

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


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