Happy Numbers

Activity:
1. Choose any natural number.
2. Square each digit of the number.
3. Add the squares to get a new number.
4. Repeat step 2 & 3 with the new number.
5. Find out if 1 is generated in this process. If yes, then the original number
is a happy number. Else, it is an unhappy number.

32= 3²+2²=9+4 =13=1²+3²=1+9=10=1²+0²=1+0=1
So, 32 is a happy number.
Try to find out more such numbers and share with others.