Q: What are the prime factors of the number 233,154,540?

 A: 2, 3, 5, 409, 3167

Why are those the prime factors of the number 233,154,540?

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 233,154,540

233,154,540
Factor Arrows
2116,577,270
Factor Arrows
258,288,635
Factor Arrows
319,429,545
Factor Arrows
36,476,515
Factor Arrows
51,295,303
Factor Arrows
4093,167

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, 409, 3167

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 409 x 3,167 = 233,154,540

This can also be written as 22 x 32 x 51 x 4091 x 3,1671 = 233,154,540

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


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