LCM Calculator

LCM Calculator

Enter values separated by commas (e.g. 12, 30, 45). Choose a method and click Calculate.

Tip: Zero or negative numbers are handled — LCM of a set with a zero returns 0.

Built with plain HTML, CSS & JavaScript — copy, edit, and embed anywhere.

How To Use LCM Calculator

  1. Enter numbers separated by commas (e.g., 12, 30, 45) in the input box.

  2. Choose your preferred method from the dropdown (Prime Factorization or Pairwise).

  3. Click the Calculate button to find the Least Common Multiple.

  4. View the result displayed below the buttons.

  5. Click Clear to reset the calculator and enter new numbers.