Fibonacci series: The series in which the sum of 2 consecutive numbers will be the next number. Series is: 0, 1, 1, 2, 3, 5, 8, 13…..
An Armstrong number is a n-digit number that is equal to the sum of the nth power of its digits. For example – 6 = 6^1 = 6 371 = 3^3 + 7^3 + 1^3 …
Strong Number: Sum of factorials of Individual digits is equals to the same numbern = 145 -> 1! + 4! + 5! -> 1 + 24 + 120 -> 145
Palindrome Number: Reverse number is equals to the same number.
