Q: What are the prime factors of the number 8,198,000?

 A: 2, 5, 4099

Why are those the prime factors of the number 8,198,000?

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 8,198,000

8,198,000
Factor Arrows
24,099,000
Factor Arrows
22,049,500
Factor Arrows
21,024,750
Factor Arrows
2512,375
Factor Arrows
5102,475
Factor Arrows
520,495
Factor Arrows
54,099

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, 4099

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 5 x 4,099 = 8,198,000

This can also be written as 24 x 53 x 4,0991 = 8,198,000

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


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