Q: What are the prime factors of the number 423,321,000?

 A: 2, 3, 5, 141107

Why are those the prime factors of the number 423,321,000?

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 423,321,000

423,321,000
Factor Arrows
2211,660,500
Factor Arrows
2105,830,250
Factor Arrows
252,915,125
Factor Arrows
317,638,375
Factor Arrows
53,527,675
Factor Arrows
5705,535
Factor Arrows
5141,107

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, 141107

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 5 x 5 x 141,107 = 423,321,000

This can also be written as 23 x 31 x 53 x 141,1071 = 423,321,000

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


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