Q: What are the prime factors of the number 242,443,136?

 A: 2, 13, 367, 397

Why are those the prime factors of the number 242,443,136?

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 242,443,136

242,443,136
Factor Arrows
2121,221,568
Factor Arrows
260,610,784
Factor Arrows
230,305,392
Factor Arrows
215,152,696
Factor Arrows
27,576,348
Factor Arrows
23,788,174
Factor Arrows
21,894,087
Factor Arrows
13145,699
Factor Arrows
367397

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, 13, 367, 397

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 13 x 367 x 397 = 242,443,136

This can also be written as 27 x 131 x 3671 x 3971 = 242,443,136

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


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