Q: What are the prime factors of the number 6,216,000?

 A: 2, 3, 5, 7, 37

Why are those the prime factors of the number 6,216,000?

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 6,216,000

6,216,000
Factor Arrows
23,108,000
Factor Arrows
21,554,000
Factor Arrows
2777,000
Factor Arrows
2388,500
Factor Arrows
2194,250
Factor Arrows
297,125
Factor Arrows
332,375
Factor Arrows
56,475
Factor Arrows
51,295
Factor Arrows
5259
Factor Arrows
737

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, 7, 37

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 5 x 5 x 5 x 7 x 37 = 6,216,000

This can also be written as 26 x 31 x 53 x 71 x 371 = 6,216,000

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


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