Question

Find the greatest common factor of 44,55,66

a
11

b
44

c
6

Answer 1

To find the greatest common factor (GCF) of the numbers 44, 55, and 66, we can first factor each number into its prime factors:

1. **44**:
- Factors: \( 44 = 2 \times 2 \times 11 = 2^2 \times 11 \)

2. **55**:
- Factors: \( 55 = 5 \times 11 \)

3. **66**:
- Factors: \( 66 = 2 \times 3 \times 11 = 2 \times 3 \times 11 \)

Next, we identify the common factors from the prime factorization:

- The only common prime factor among 44, 55, and 66 is **11**.

Therefore, the greatest common factor is **11**.

So, the answer is:

**a) 11**.