Q: What are the prime factors of the number 154,122,224?

 A: 2, 19, 181, 2801

Why are those the prime factors of the number 154,122,224?

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 154,122,224

154,122,224
Factor Arrows
277,061,112
Factor Arrows
238,530,556
Factor Arrows
219,265,278
Factor Arrows
29,632,639
Factor Arrows
19506,981
Factor Arrows
1812,801

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, 19, 181, 2801

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 19 x 181 x 2,801 = 154,122,224

This can also be written as 24 x 191 x 1811 x 2,8011 = 154,122,224

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


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