{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://www.calculatorx.com/schemas/math.factorial.input.json",
  "title": "Ordinary factorial — input",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "n": {
      "type": "integer",
      "minimum": 0,
      "maximum": 5000,
      "description": "Non-negative integer. Share-URL alias: nInput"
    },
    "nInput": {
      "type": "integer",
      "minimum": 0,
      "maximum": 5000,
      "description": "Share-URL alias for n (SSR and page hydrate accept both)"
    }
  },
  "description": "Exact n! for integers 0 ≤ n ≤ 5000 via BigInt arithmetic, with product expansion, digit count, and scientific notation for long integers. (calculation_version 1.0.2) Provide at least 1 of: n, nInput."
}