{
 "source": "https://peabody.kids/flashcards/math-factorials",
 "id": "math-factorials",
 "category": "math",
 "subject": "Math",
 "title": "Factorials 0 to 12",
 "levels": [
  "9-12",
  "college"
 ],
 "description": "n factorial is the product of all whole numbers from 1 up to n.",
 "tags": [
  "factorial",
  "counting"
 ],
 "frontLabel": "Factorial",
 "backLabel": "Value",
 "cards": [
  [
   "0!",
   "1",
   "By definition"
  ],
  [
   "1!",
   "1"
  ],
  [
   "2!",
   "2"
  ],
  [
   "3!",
   "6"
  ],
  [
   "4!",
   "24"
  ],
  [
   "5!",
   "120"
  ],
  [
   "6!",
   "720"
  ],
  [
   "7!",
   "5040"
  ],
  [
   "8!",
   "40320"
  ],
  [
   "9!",
   "362880"
  ],
  [
   "10!",
   "3628800"
  ],
  [
   "11!",
   "39916800"
  ],
  [
   "12!",
   "479001600"
  ]
 ]
}