Q: What are the prime factors of the number 3,101,400?

 A: 2, 3, 5, 1723

Why are those the prime factors of the number 3,101,400?

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 3,101,400

3,101,400
Factor Arrows
21,550,700
Factor Arrows
2775,350
Factor Arrows
2387,675
Factor Arrows
3129,225
Factor Arrows
343,075
Factor Arrows
58,615
Factor Arrows
51,723

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, 1723

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 5 x 1,723 = 3,101,400

This can also be written as 23 x 32 x 52 x 1,7231 = 3,101,400

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


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