Q: What are the prime factors of the number 30,455,136?

 A: 2, 3, 101, 349

Why are those the prime factors of the number 30,455,136?

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 30,455,136

30,455,136
Factor Arrows
215,227,568
Factor Arrows
27,613,784
Factor Arrows
23,806,892
Factor Arrows
21,903,446
Factor Arrows
2951,723
Factor Arrows
3317,241
Factor Arrows
3105,747
Factor Arrows
335,249
Factor Arrows
101349

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, 101, 349

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 101 x 349 = 30,455,136

This can also be written as 25 x 33 x 1011 x 3491 = 30,455,136

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


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