Factors of a given number are the numbers from 1 till the number, for which the number is divisible. It means all these numbers divide the given number and give remainder 0.

Example: The factors of 24 are 1, 2, 3, 4, 6, 8, 12, 24

The power of a given number obtained by multiplying the number with itself for a specified number of times.

For a given number a, calculate the nth power where n is any number n > 0, a > 0

Example: Func(2, 5) = 5th power of 2 = 32

Factorial of a number n can be termed as multiplication of all numbers from 1 till the number n.

n! = 123*...*n

Example: 5!=12345=120