Q: What are the prime factors of the number 6,422,247?

 A: 3, 13, 19, 107

Why are those the prime factors of the number 6,422,247?

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 6,422,247

6,422,247
Factor Arrows
32,140,749
Factor Arrows
3713,583
Factor Arrows
3237,861
Factor Arrows
379,287
Factor Arrows
326,429
Factor Arrows
132,033
Factor Arrows
19107

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:

3, 13, 19, 107

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 13 x 19 x 107 = 6,422,247

This can also be written as 35 x 131 x 191 x 1071 = 6,422,247

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


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