Big Number Calculator
Perform addition, subtraction, and multiplication on arbitrarily large integers using JavaScript's BigInt for exact precision. No rounding or scientific notation truncation.
About this Calculator
Perform addition, subtraction, and multiplication on arbitrarily large integers using JavaScript's BigInt for exact precision. No rounding or scientific notation truncation.
Formula & Calculations
Formula
Uses BigInt for arbitrary-precision integer arithmetic. Supports addition, subtraction, and multiplication.Where:
- BigInt=A JavaScript numeric primitive that can represent integers with arbitrary precision, limited only by available memory
- a, b=Two arbitrarily large integers (positive or negative)
Assumptions
- Only integer operations are supported (no decimals).
- Division is not included because BigInt division truncates toward zero.
- Input numbers must consist of digits only, with an optional leading minus sign.
Calculation Examples
Example 1
Exact addition of two 20-digit numbers, far beyond standard 64-bit float precision.
Example 2
BigInt handles numbers with hundreds of digits without any loss of precision.
Frequently Asked Questions
Why use BigInt instead of regular numbers?
JavaScript's Number type uses 64-bit floating point and can only precisely represent integers up to 2^53 - 1 (about 9 quadrillion). BigInt has no upper limit and is exact for all integer operations.
What operations are supported by this calculator?
Addition (+), subtraction (−), and multiplication (×). Division and modulo are excluded because BigInt division truncates toward zero, which may not match user expectations. Use the Modulo Calculator for precise division with remainder.