Big Number Calculator
Perform arithmetic operations on arbitrarily large integers. Add, subtract, multiply, divide, and calculate powers for numbers that exceed standard calculator limits.
About Huge Integer Calculations
Standard calculators and computer number systems (like IEEE 754 floating point) typically lose precision after 15-17 digits. They start rounding numbers or converting them to scientific notation (e.g., 1.23e+20), which means you lose the exact value of the lower digits.
This Big Number Calculator uses arbitrary-precision arithmetic to calculate results digit-by-digit, preserving 100% accuracy regardless of how large the number is (limited only by your browser's memory).
Supported Operations
- Addition (+) & Subtraction (-): Exact sums and differences of integers.
- Multiplication (×): Product of two large integers.
- Division (÷): Integer division. It calculates how many times the divisor fits into the dividend (quotient) and provides the remainder separately.
- Modulo (%): The remainder of the division.
- Exponentiation (xⁿ): Calculates x raised to the power of n. Note: The exponent must be a non-negative integer (usually < 10,000 to prevent browser timeout).
Use Cases
- Cryptography: Working with 256-bit or larger keys (RSA encryption).
- Factorials: Calculating exact values for combinations and permutations.
- Science: Precise astronomical or atomic calculations where floating-point errors are unacceptable.
? Frequently Asked Questions
If the number is extremely long, we may show a scientific notation approximation (e.g., 1.23e+50) for easier reading. However, the calculation logic retains the full precision.
This specific tool is optimized for Big Integers to ensure infinite precision. Standard floating-point decimals introduce rounding errors. We recommend scaling your numbers (e.g., multiply by 100) to work with integers if you need decimal precision.
There is no fixed limit. You can calculate numbers with thousands of digits, provided your device has enough memory to store the string.