#Factorials

Jan Marthedal Rasmussen

@janmr.com

2 months ago

Prime Factors of Factorial Numbers janmr.com/posts/prime-... #math #prime #factors #factorials

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Purplemath

@purplemath.com

9 months ago

A four-panel story, told in two rows. Row 1: A man, at left, looks at something while bringing his glasses toward his face. The "something", at right, is a mathematical expression: the square root of (4 factorial times 3 factorial). Row 2: The man puts his glasses on, but appears to be confused. At right, the mathematical expression has become: 4 times 3. The math is as follows: 4! = 1 × 2 × 3 × 4 = 2 × 3 × 4 3! = 1 × 2 × 3 = 2 × 3 4! × 3! = 2 × 2 × 3 × 3 × 4 = 4 × 4 × 3 × 3 Then the square root of 4! × 3! is: sqrt(4 × 4 × 3 × 3) = 4 × 3

#factorials #squareroottricks #MathHumor

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