Q: What are the prime factors of the number 243,000,030?

 A: 2, 3, 5, 7, 13, 41, 167

Why are those the prime factors of the number 243,000,030?

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 243,000,030

243,000,030
Factor Arrows
2121,500,015
Factor Arrows
340,500,005
Factor Arrows
58,100,001
Factor Arrows
71,157,143
Factor Arrows
1389,011
Factor Arrows
136,847
Factor Arrows
41167

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, 13, 41, 167

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 7 x 13 x 13 x 41 x 167 = 243,000,030

This can also be written as 21 x 31 x 51 x 71 x 132 x 411 x 1671 = 243,000,030

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


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