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What does this tool do?
BigInt Arithmetic Calculator: operand a, operation, operand b, modulus (for modexp) → exact integer result, bit length, decimal digit count. Process locally in your browser. Inputs: Operand A, Operation, Operand B, Modulus (for modExp). Outputs: Exact integer result, Bit length, Decimal digit count.
How to use it?
Provide the listed input and choose Calculate. Review the result, then copy or download where available. Clear removes inputs and results.
Browser-local processing. No uploads, content logging, persistence or remote resource loading. Generated markup is inert text; files are treated as untrusted data.
100% in-browser developer math and low-level arithmetic. IEEE-754 conversions, BigInt, and matrix computations run locally on client hardware.