Overview
Big Number Calculator handles huge integer operations with browser-native BigInt, covering arithmetic, factorial, and power calculations for coding verification and data checks.
Key Features
- Run add, subtract, multiply, and divide on very large integers.
- Calculate factorial with input range from 0 to 500.
- Calculate power with exponent range from 0 to 2000.
- Show result digit count and copy the raw output in one click.
How to Use
- Enter Number A and Number B in the arithmetic section.
- Click Add, Subtract, Multiply, or Divide to get the result.
- Enter values in the factorial and power section, then run calculation.
- Review expression, formatted result, and digit count in the result area.
- Use Copy Result when you need to reuse the output.
Rules
- Only integers are supported, without decimals, commas, or spaces.
- Division is integer division, so decimal parts are truncated.
- If power output is estimated to exceed the digit limit, calculation stops to avoid browser lag.
Use Cases
- High-precision integer verification in algorithm practice.
- Big integer experiments in cryptography and number theory.
- Finance data checking and result comparison.
- Teaching demos for factorial and exponential growth.
Notes
- Invalid characters trigger input error prompts.
- Division cannot be performed when divisor is zero.
- All calculations run locally in your browser.