Q: What are the prime factors of the number 25,903,080?

 A: 2, 3, 5, 7, 19, 541

Why are those the prime factors of the number 25,903,080?

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 25,903,080

25,903,080
Factor Arrows
212,951,540
Factor Arrows
26,475,770
Factor Arrows
23,237,885
Factor Arrows
31,079,295
Factor Arrows
3359,765
Factor Arrows
571,953
Factor Arrows
710,279
Factor Arrows
19541

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, 7, 19, 541

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 7 x 19 x 541 = 25,903,080

This can also be written as 23 x 32 x 51 x 71 x 191 x 5411 = 25,903,080

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


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