Q: What are the prime factors of the number 240,211,475?

 A: 5, 7, 109, 257

Why are those the prime factors of the number 240,211,475?

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 240,211,475

240,211,475
Factor Arrows
548,042,295
Factor Arrows
59,608,459
Factor Arrows
71,372,637
Factor Arrows
7196,091
Factor Arrows
728,013
Factor Arrows
109257

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:

5, 7, 109, 257

We can check our work by multiplying all of the prime factors together: 5 x 5 x 7 x 7 x 7 x 109 x 257 = 240,211,475

This can also be written as 52 x 73 x 1091 x 2571 = 240,211,475

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


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