Q: What are the prime factors of the number 424,200,105?

 A: 3, 5, 7, 9161

Why are those the prime factors of the number 424,200,105?

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 424,200,105

424,200,105
Factor Arrows
3141,400,035
Factor Arrows
347,133,345
Factor Arrows
315,711,115
Factor Arrows
53,142,223
Factor Arrows
7448,889
Factor Arrows
764,127
Factor Arrows
79,161

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, 5, 7, 9161

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 7 x 7 x 7 x 9,161 = 424,200,105

This can also be written as 33 x 51 x 73 x 9,1611 = 424,200,105

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


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