Answer :

To determine which among the given numbers are factors of 100, we need to identify which of these numbers divide 100 evenly, without leaving a remainder.

Let's look at the numbers one by one:

1. 2: Check if 100 can be divided by 2 without a remainder.
- 100 ÷ 2 = 50. Since the result is a whole number, 2 is a factor of 100.

2. 3: Check if 100 can be divided by 3 without a remainder.
- 100 ÷ 3 ≈ 33.33. The result is not a whole number, so 3 is not a factor of 100.

3. 20: Check if 100 can be divided by 20 without a remainder.
- 100 ÷ 20 = 5. Since the result is a whole number, 20 is a factor of 100.

4. 45: Check if 100 can be divided by 45 without a remainder.
- 100 ÷ 45 ≈ 2.22. The result is not a whole number, so 45 is not a factor of 100.

5. 50: Check if 100 can be divided by 50 without a remainder.
- 100 ÷ 50 = 2. Since the result is a whole number, 50 is a factor of 100.

6. 200: Check if 100 can be divided by 200 without a remainder.
- 100 ÷ 200 = 0.5. The result is not a whole number, so 200 is not a factor of 100.

Based on this analysis, the three numbers that are factors of 100 are:
- 2
- 20
- 50

So, the three numbers from the given list that are factors of 100 are 2, 20, and 50.