Final answer:
The greatest common factor (GCF) of 10 and 30 is 10, which is the highest number that divides both numbers without leaving a remainder.
Step-by-step explanation:
The question asks for the greatest common factor (GCF) of 10 and 30.
The greatest common factor is the highest number that divides both numbers without leaving a remainder.
First, we list the factors of each number:
- Factors of 10: 1, 2, 5, 10
- Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30
Now, we look for the largest factor that these two lists share, which is 10. So, the GCF of 10 and 30 is 10.