Q: What are the prime factors of the number 238,722,550?

 A: 2, 5, 11, 241, 1801

Why are those the prime factors of the number 238,722,550?

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 238,722,550

238,722,550
Factor Arrows
2119,361,275
Factor Arrows
523,872,255
Factor Arrows
54,774,451
Factor Arrows
11434,041
Factor Arrows
2411,801

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, 5, 11, 241, 1801

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 11 x 241 x 1,801 = 238,722,550

This can also be written as 21 x 52 x 111 x 2411 x 1,8011 = 238,722,550

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


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