Q: What are the prime factors of the number 243,310,212?

 A: 2, 3, 61, 101, 1097

Why are those the prime factors of the number 243,310,212?

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 243,310,212

243,310,212
Factor Arrows
2121,655,106
Factor Arrows
260,827,553
Factor Arrows
320,275,851
Factor Arrows
36,758,617
Factor Arrows
61110,797
Factor Arrows
1011,097

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, 61, 101, 1097

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 61 x 101 x 1,097 = 243,310,212

This can also be written as 22 x 32 x 611 x 1011 x 1,0971 = 243,310,212

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


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