Big Number Calculator

Performs arbitrary-precision arithmetic on integers — addition, subtraction, multiplication, division, modulo, and exponentiation — without any floating-point rounding. Handles numbers with thousands of digits.

• →Enter two numbers (any size) and select an operation.
• →Results are exact — no floating-point rounding or overflow errors.
• →Useful for cryptography, competitive programming, and working with large factorials or prime tests.