The greatest common factor (GCF) of 16 and 36 is 4.
To find the GCF, we first identify the factors of each number:
- Factors of 16: 1, 2, 4, 8, 16
- Factors of 36: 1, 2, 3, 4, 6, 9, 12, 18, 36
Next, we look for the largest factor that both numbers share. In this case, the common factors are 1, 2, and 4, with 4 being the greatest among them. Therefore, the GCF of 16 and 36 is 4.