What this calculator does
Multiply nonnegative integers and show digit-by-digit partial products used by a lattice method.
How it works
The calculator evaluates product = multiplicand × multiplier; lattice cells contain each pair of digit products. Inputs are checked before calculation, and invalid values such as zero denominators or out-of-range selections produce a clear error instead of a misleading result.
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
2-
?multiplicand=MultiplicandText · Required · Default: 347
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?multiplier=MultiplierText · Required · Default: 58
Outputs
2-
productProductText · Primary output
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digitProductsDigit productsText
Inputs and results
The inputs are Multiplicand, Multiplier. Results include Product, Digit products.