Which of the following are the factors of $125$?

To determine the factors of 125, we need to identify all the numbers that divide 125 without leaving a remainder. Factors are integers that can be multiplied together to give the original number.

Step-by-Step Solution

1. Start with the smallest factor, which is 1. Multiply:

   • 1 × 125 = 125

   Therefore, both 1 and 125 are factors of 125.

2. Next, check if 5 is a factor of 125. Divide 125 by 5:

   • 125 ÷ 5 = 25

   Since the result is a whole number, 5 and 25 are also factors of 125.