Loading calculator...
Loading calculator...
Add, subtract, and multiply very large integers (beyond JavaScript's safe integer limit) with precise results displayed with comma formatting.
Big Number Arithmetic:
Addition: column-by-column with carry propagation
Subtraction: column-by-column with borrow propagation
Multiplication: long multiplication digit-by-digit, then accumulate
Numbers are processed as strings to avoid floating-point limits.
JavaScript's Number type can safely handle integers up to 2^53 - 1 = 9,007,199,254,740,991 (about 9 quadrillion). Beyond this, precision is lost. This calculator handles arbitrarily large integers using string arithmetic.
BigInt is a JavaScript built-in type for arbitrary-precision integers. This calculator implements similar functionality from scratch using string-based arithmetic algorithms for educational purposes.
No, this calculator is designed for integers only. For large decimal numbers, you would need a more complex decimal representation.
Long multiplication processes each digit pair, computes products, and accumulates them at appropriate positions in the result array — similar to how you do multiplication by hand.
Big number arithmetic is essential in cryptography (RSA uses numbers with hundreds of digits), computational mathematics, financial calculations requiring exact precision, and scientific simulations.