#4aa: Coding in Python {LCM Calculator}

1. x=1
2. while x!=0:
3.     howMany = int(input('Enter number of numbers: '))
4.     print()
5.     if howMany>1:
6.         x=0
7.         allNumbers = []
8.         for i in range(howMany):
9.             EN=('Enter number #{}: '.format(i+1))
10.             y=1
11.             while y!=0:                
12.                 number = int(input(EN))
13.                 if number>1:
14.                     y=0
15.                     allNumbers.append(number)
16.                 else:
17.                     print('Retry, make sure that desired number is a natural number, i.e., more than 0.')
18.                     print()
19.         #product
20.         product = 1
21.         for i in (allNumbers):
22.                 product=product*i
23.         #collection   
24.         bigList=[]
25.         for i in (allNumbers):
26.             for j in range (1,(int(product/i))+1):
27.                 bigList.append(i*j)      
28.         #filter
29.         for i in (bigList):
30.             if bigList.count(i)==howMany: 
31.                 print()
32.                 print('Required LCM is',i)
33.                 break 
34.     else:
35.         print('Retry, choice should be more than 1.')
36.         print()

Download the above code from here.