Q: What are the prime factors of the number 154,436,436?

 A: 2, 3, 7, 11, 379

Why are those the prime factors of the number 154,436,436?

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 154,436,436

154,436,436
Factor Arrows
277,218,218
Factor Arrows
238,609,109
Factor Arrows
312,869,703
Factor Arrows
34,289,901
Factor Arrows
31,429,967
Factor Arrows
7204,281
Factor Arrows
729,183
Factor Arrows
74,169
Factor Arrows
11379

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, 7, 11, 379

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 7 x 7 x 7 x 11 x 379 = 154,436,436

This can also be written as 22 x 33 x 73 x 111 x 3791 = 154,436,436

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


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