How it works
Perform arithmetic on very large integers.
Input query strings and outputs
Use an input name in this page’s URL as ?name=value, and join additional inputs with &. Portable shared links may instead use the compact ?ac= state parameter.
Input query strings
3-
?operation=OperationChoice · Optional · Default: +
-
?num1=Number 1Number · Optional · Default: 9,007,199,254,740,991
-
?num2=Number 2Number · Optional · Default: 123,456,789
Outputs
1-
resultResultText · Primary output
result contains the calculator’s complete rendered result area, including its visible result cards, tables, charts, and messages.
High-precision arithmetic for astronomical integers
Description
The Big Number Calculator is a specialized math tool designed to handle integers that are far too large for standard calculators (which usually cap out at around 15 digits). By using arbitrary-precision arithmetic, this tool allows you to perform exact calculations on numbers with hundreds or even thousands of digits. It is essential for work in cryptography, computer science, and theoretical mathematics.
Inputs
- Number 1: The first large integer.
- Operation:
- + (Addition)
- - (Subtraction)
- * (Multiplication)
- / (Integer Division)
- % (Modulo/Remainder)
- ^ (Exponentiation)
- Number 2: The second large integer.
Outputs
- Result: The exact, high-precision result of the operation.
Chart
- N/A: This tool specializes in raw, large-scale integer results.
“Good to Know”
- Floating Point Limits: Standard JavaScript numbers lose precision after 9,007,199,254,740,991. This calculator uses
BigIntto go far beyond that limit without losing a single digit. - Integer Division: When dividing big integers, the result is always a whole number (the remainder is discarded or calculated separately via the % operator).
- Exponent Limits: While multiplication is fast, raising a huge number to a huge power can crash your browser. This tool limits exponents to prevent performance freezes.
Examples
Example 1: Beyond Standard Limits
- Input:
9007199254740991 + 1 - Output:
9007199254740992(A standard calculator might fail this!)
Example 2: Massive Multiplication
- Input:
123456789 * 987654321 - Output:
121932631112635269
Example 3: Modulo Arithmetic
- Input:
1000000000000000000 % 3 - Output:
1