LCM HCF

LCM & HCF Visualizer

Class 6–10 • Division method • Venn diagram • Euclid • Number line

Enter numbers and press Calculate. Choose a visual method above.

Numbers

Examples

Results

Numbers—
HCF—
LCM—
Check—

HCF (Highest Common Factor)

The largest number that divides all given numbers exactly.
Division method: divide only by primes common to all numbers.
Green numbers in the diagram are used for HCF.

LCM (Least Common Multiple)

The smallest number that is a multiple of all given numbers.
For two numbers: HCF × LCM = product of the numbers
Number line: first common multiple is the LCM.

Step-by-step (very simple)

1. Prime factorisation

  1. Enter numbers and press Calculate.

2. HCF

  1. —

3. LCM

  1. —

4. Euclid / extra check

  1. —

NCERT Class 6–10 • HCF & LCM visual methods