Modulo calculator

Client

Integer remainder after division—useful alongside GCD & LCM for number-theory tasks.

About Modulo calculator

Integer remainder and truncated quotient (a mod b)—BigInt math in your browser. The interactive transform on this page runs in your browser tab—Toolcore does not need your paste for the core operation described above.

How to use this page

Paste or type in the main workspace, run the primary action from the toolbar, then copy or download the result. Use Load example when the page offers it, or URL prefill (?q= / ?qb=) so agents and tickets open the same input.

Remainder
2
Quotient (truncated)
3

Nearby workflows on Toolcore

  • GCD & LCM calculator — Greatest common divisor and least common multiple for two non-negative integers—BigInt, local only. when units or numeric output should be checked on a related calculator.
  • Math expression evaluator — Evaluate basic + − × ÷ arithmetic with parentheses in your browser—no variables. when units or numeric output should be checked on a related calculator.
  • Prime number checker — Test whether a whole number is prime—BigInt trial division in your browser, no upload. when units or numeric output should be checked on a related calculator.
  • Integer base converter — Whole numbers in radices 2–36: binary, octal, decimal, hex (optional 0x), custom bases; BigInt-sized strings, local only. when units or numeric output should be checked on a related calculator.

Common use cases

  • Verify remainder behavior for negative dividends in homework.
  • Check modular arithmetic before writing loop indexes in code.

Common mistakes to avoid

  • Expecting floating-point division

    This tool uses integer division; the quotient is truncated toward zero.

FAQ

What about negative numbers?

BigInt % follows JavaScript semantics—the remainder sign matches the dividend.

Is data uploaded?

No. Calculation runs entirely in your browser.

More tools

Related utilities you can open in another tab—mostly client-side.