MAX
function MAX(args: number | string | [] | ApiRange = null): numberDescription
Returns the largest value in a set of values. Ignores logical values and text.
Parameters
Up to 255 numeric values for which the largest number will be returned. The first argument is required, subsequent arguments are optional.
Returns
numberTry It
const oWorksheet = Api.GetActiveSheet();
var oFunction = Api.GetWorksheetFunction();
var max = oFunction.MAX(123, 197, 46, 354, 67, 456);
oWorksheet.GetRange("C1").SetValue(max);