Factorial

In mathematics, factorials are represented by “n!” where any non-negative number is multiplied by itself and its descending whole numbers.  Therefore,

  • 1! = 1.
  • 2! = 2 x 1 = 2.
  • 3! = 3 x 2 x 1 = 6.
  • 4! = 4 x 3 x 2 x 1 =24.
  • 5! = 5 x 4 x 3 x 2 x 1 = 120.
  • 6! = 6 x 5 x 4 x 3 x 2 x 1 = 720. 
  • 10! = 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 = 3,628,800
  • 20! = 20 x 19 x 18 x 17 x 16 x 15 x 14 x 13 x 12 x 11 x 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 = 2.4329 X 1018  
    • or 2,432,902,008,176,640,000
  • 30!  = 2.653 X 1032 
    • or 265,252,859,812,191,000,000,000,000,000,000
  • 40! = 8.159 X 1047
    • or 815,915,283,247,898,000,000,000,000,000,000,000,000,000,000,000
  • 50! = 3.04141 X 1064
    • or 30,414,093,201,713,400,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000
  • 60! = 8.32099 X 1081
    • or 8,320,987,112,741,390,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000
  • 70! = 1.1979 X 10100
    • or 11,978,571,669,969,900,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000
  • 80! = 7.1569 X 10118
    • or 71,569,457,046,263,800,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000
  • 90! = 1.4857 X 10138
  • 100! =  9.3326 X 10157
  • 110!  = 1.5882 X 10178
  • 120!  = 6.6895 X 10198
  • 130!  = 6.4669 X 10219
  • 140!  = 1.3462 X 10241
  • 150!  = 5.7134 X 10262
  • 160!  = 4.7147 X 10284
  • 170!  = 7.2574 X 10306
  • ....etc....

 

 

 

 
 
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