Q: What are the prime factors of the number 26,891,892?

 A: 2, 3, 17, 97, 151

Why are those the prime factors of the number 26,891,892?

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 26,891,892

26,891,892
Factor Arrows
213,445,946
Factor Arrows
26,722,973
Factor Arrows
32,240,991
Factor Arrows
3746,997
Factor Arrows
3248,999
Factor Arrows
1714,647
Factor Arrows
97151

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, 17, 97, 151

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 17 x 97 x 151 = 26,891,892

This can also be written as 22 x 33 x 171 x 971 x 1511 = 26,891,892

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


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