Program to check an Armstrong number.¶

In [1]:
n=int(input("enter a no :"))

sum = 0
num = n

while (n>0):
    r = n%10
    sum+=r**3
    n=n//10
    
if(sum==num):
    print("it is an armstrong number")
        
else:
    print("it is not an armstrong number")

enter a no :153
it is an armstrong number

program to check a Fibonacci number.¶

In [5]:
n = int(input("Enter a number"))

x = 0
y = 1
z = 1

if  ( n == 0 ):
    print ("this is a fib no")

if  ( n== 1):
    print ("this is a fib no")
else:
    while x < n:

        x = y + z
        y = z
        z = x

    if (x == n):
          print ("this is a fib no")

    else:
          print ("this is not a fib no")

Enter a number7
this is not a fib no
In [ ]: