Answer: 2
Step-by-step explanation:
The greatest common factor (GCF) of 12, 10, 4, 6, and 15 is 2.
To find the GCF, we can list the factors of each number and find the largest factor that is common to all of them. The factors of each number are:
12: 1, 2, 3, 4, 6, 12
10: 1, 2, 5, 10
4: 1, 2, 4
6: 1, 2, 3, 6
15: 1, 3, 5, 15
The common factors of these numbers are 1 and 2. The largest factor that is common to all of them is 2.
Therefore, the GCF of 12, 10, 4, 6, and 15 is 2
