Q: What are the prime factors of the number 269,780?

 A: 2, 5, 7, 41, 47

Why are those the prime factors of the number 269,780?

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 269,780

269,780
Factor Arrows
2134,890
Factor Arrows
267,445
Factor Arrows
513,489
Factor Arrows
71,927
Factor Arrows
4147

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, 7, 41, 47

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 41 x 47 = 269,780

This can also be written as 22 x 51 x 71 x 411 x 471 = 269,780

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


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