Video Lecture 1 Khan Academy - Permutation formula Combination formula Additional Rule Of Probability

Advertisements

Skip to content
# Category: Maths

## Probability

## Factorial and Prime

Video Lecture 1 Khan Academy - Permutation formula Combination formula Additional Rule Of Probability

Advertisements

Factorial is defined only for natural numbers( no fractions and no negative numbers). 0! = 1 Unit digit of factorial of any number greater than 5 is always 0. Exponent of a in in n!( Highest power of a in n!). a is a prime number. 11:54 Number of 0 in n! 24:00