To find the factors of a number, you need to try dividing it by each Prime number in turn. You can stop at what would be the numbers square root. In this case the number is less than 81 so we can stop at 9. Try dividing 79 by 2, 3, 5 and 7 and you will find that none of them divide evenly. Thus, 79 is prime, and the only factors it will have are 1 and 79.
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The factors of 79 are 1 and 79. (79 is a prime number.)
79 because its a prime number
79 is a prime number so just 1 & 79.
Since 79 is a prime number, it can ony be written as 79*1.
The number 79 has no positive integer factors other than itself and 1.