Q: What are the prime factors of the number 154,443,432?

 A: 2, 3, 11, 13, 4091

Why are those the prime factors of the number 154,443,432?

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 154,443,432

154,443,432
Factor Arrows
277,221,716
Factor Arrows
238,610,858
Factor Arrows
219,305,429
Factor Arrows
36,435,143
Factor Arrows
11585,013
Factor Arrows
1153,183
Factor Arrows
134,091

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, 11, 13, 4091

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 11 x 11 x 13 x 4,091 = 154,443,432

This can also be written as 23 x 31 x 112 x 131 x 4,0911 = 154,443,432

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


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