Q: What are the prime factors of the number 23,416,320?

 A: 2, 3, 5, 3049

Why are those the prime factors of the number 23,416,320?

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 23,416,320

23,416,320
Factor Arrows
211,708,160
Factor Arrows
25,854,080
Factor Arrows
22,927,040
Factor Arrows
21,463,520
Factor Arrows
2731,760
Factor Arrows
2365,880
Factor Arrows
2182,940
Factor Arrows
291,470
Factor Arrows
245,735
Factor Arrows
315,245
Factor Arrows
53,049

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, 3049

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 3,049 = 23,416,320

This can also be written as 29 x 31 x 51 x 3,0491 = 23,416,320

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


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