# Write a Python Program to print the LCM of Two Numbers - Python

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### Write a Python Program to print the LCM of Two Numbers

``````def lcm(a,b):
lcm.multiple=lcm.multiple+b
if((lcm.multiple % a == 0) and (lcm.multiple % b == 0)):
return lcm.multiple
else:
lcm(a, b)
return lcm.multiple
lcm.multiple=0
a=4
b=7
if(a>b):
LCM=lcm(b,a)
else:
LCM=lcm(a,b)

print(LCM)
``````

### Write a Python function to print the GSD of Two Numbers

``````def gcd(a,b):
if(b==0):
return a
else:
return gcd(b,a%b)
``````

### Write a Python function to Find if a Number is Prime or Not Prime

``````def check(n, div = None):
if div is None:
div = n - 1
while div >= 2:
if n % div == 0:
print("Number not prime")
return False
else:
return check(n, div-1)
else:
print("Number is prime")
return 'True'
``````

### Write a Python function to Find the Power of a Number Using Recursion

``````def power(base,exp):
if(exp==1):
return(base)
if(exp!=1):
return(base*power(base,exp-1))
``````

### Write a Python function to Find the Total Sum of a Nested List Using Recursion

``````def sum1(lst):
total = 0
for element in lst:
if (type(element) == type([])):
total = total + sum1(element)
else:
total = total + element

### Write a Python function to Count and print the Number of Vowels Present in a String using Sets
``````

def count_vowels(s): count = 0 vowels = set("aeiou") for letter in s: if letter in vowels: count += 1 return count

``````### Write a Python Program to prints Common Letters in Two Input Strings
``````

s1='python' s2='schoolofai' a=list(set(s1)&set(s2)) print("The common letters are:") for i in a: print(i)

``````### Write a Python Program that Prints which Letters are in the First String but not in the Second
``````

s1='python' s2='schoolofai' a=list(set(s1)-set(s2)) print("The letters are:") for i in a: print(i)

``````### Write a Python Program to Concatenate Two Dictionaries Into One
``````

def concat_dic(d1, d2): return d1.update(d2)

``````### Write a Python Program to Multiply All the Items in a Dictionary
``````

def mul_dict(d): tot=1 for i in d:
``````### Write a Python Program to Remove the Given Key from a Dictionary
``````### Write a Python Program to Map Two Lists into a Dictionary