Q: What are the prime factors of the number 23,315,136?

 A: 2, 3, 13, 9341

Why are those the prime factors of the number 23,315,136?

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 23,315,136

23,315,136
Factor Arrows
211,657,568
Factor Arrows
25,828,784
Factor Arrows
22,914,392
Factor Arrows
21,457,196
Factor Arrows
2728,598
Factor Arrows
2364,299
Factor Arrows
3121,433
Factor Arrows
139,341

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, 13, 9341

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 3 x 13 x 9,341 = 23,315,136

This can also be written as 26 x 31 x 131 x 9,3411 = 23,315,136

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


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