GCF and LCM of 11 and 12
The greatest common factor and least common multiple of 11 and 12.
GCF of 11 and 12
1
LCM of 11 and 12
132
How it works
Break each number into its prime factors:
- 11 = 11
- 12 = 2² × 3
The GCF (1) multiplies the primes both share, at the lowest power each appears. The LCM (132) multiplies every prime that appears in either number, at the highest power — which is also 11 × 12 ÷ 1 = 132.
Try other numbers
Need a different pair? The LCM & GCF calculator computes the GCF and LCM for any two numbers.
Related pairs
Frequently asked questions
What is the GCF of 11 and 12?+
The greatest common factor (GCF) of 11 and 12 is 1 — the largest number that divides both 11 and 12 with no remainder.
What is the LCM of 11 and 12?+
The least common multiple (LCM) of 11 and 12 is 132 — the smallest number that both 11 and 12 divide into. It equals 11 × 12 ÷ GCF = 132 ÷ 1 = 132.