Q: What are the prime factors of the number 243,335,250?

 A: 2, 3, 5, 83, 1303

Why are those the prime factors of the number 243,335,250?

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 243,335,250

243,335,250
Factor Arrows
2121,667,625
Factor Arrows
340,555,875
Factor Arrows
313,518,625
Factor Arrows
52,703,725
Factor Arrows
5540,745
Factor Arrows
5108,149
Factor Arrows
831,303

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, 83, 1303

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 5 x 5 x 83 x 1,303 = 243,335,250

This can also be written as 21 x 32 x 53 x 831 x 1,3031 = 243,335,250

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


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