GCF and LCM of 2 and 10
The greatest common factor and least common multiple of 2 and 10.
GCF of 2 and 10
2
LCM of 2 and 10
10
How it works
Break each number into its prime factors:
- 2 = 2
- 10 = 2 × 5
The GCF (2) multiplies the primes both share, at the lowest power each appears. The LCM (10) multiplies every prime that appears in either number, at the highest power — which is also 2 × 10 ÷ 2 = 10.
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 2 and 10?+
The greatest common factor (GCF) of 2 and 10 is 2 — the largest number that divides both 2 and 10 with no remainder.
What is the LCM of 2 and 10?+
The least common multiple (LCM) of 2 and 10 is 10 — the smallest number that both 2 and 10 divide into. It equals 2 × 10 ÷ GCF = 20 ÷ 2 = 10.