Q: What are the prime factors of the number 23,440,780?

 A: 2, 5, 11, 47, 2267

Why are those the prime factors of the number 23,440,780?

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 23,440,780

23,440,780
Factor Arrows
211,720,390
Factor Arrows
25,860,195
Factor Arrows
51,172,039
Factor Arrows
11106,549
Factor Arrows
472,267

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, 5, 11, 47, 2267

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 11 x 47 x 2,267 = 23,440,780

This can also be written as 22 x 51 x 111 x 471 x 2,2671 = 23,440,780

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


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