Q: What are the prime factors of the number 26,387,208?

 A: 2, 3, 43, 947

Why are those the prime factors of the number 26,387,208?

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 26,387,208

26,387,208
Factor Arrows
213,193,604
Factor Arrows
26,596,802
Factor Arrows
23,298,401
Factor Arrows
31,099,467
Factor Arrows
3366,489
Factor Arrows
3122,163
Factor Arrows
340,721
Factor Arrows
43947

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, 43, 947

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 43 x 947 = 26,387,208

This can also be written as 23 x 34 x 431 x 9471 = 26,387,208

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


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