Q: What are the prime factors of the number 151,641,600?

 A: 2, 3, 5, 11, 359

Why are those the prime factors of the number 151,641,600?

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 151,641,600

151,641,600
Factor Arrows
275,820,800
Factor Arrows
237,910,400
Factor Arrows
218,955,200
Factor Arrows
29,477,600
Factor Arrows
24,738,800
Factor Arrows
22,369,400
Factor Arrows
21,184,700
Factor Arrows
2592,350
Factor Arrows
2296,175
Factor Arrows
398,725
Factor Arrows
519,745
Factor Arrows
53,949
Factor Arrows
11359

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, 5, 11, 359

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 2 x 2 x 3 x 5 x 5 x 11 x 359 = 151,641,600

This can also be written as 29 x 31 x 52 x 111 x 3591 = 151,641,600

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


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