If "4" is called as "76", "76" is called as "75", "75" is called as "6", "6" is called as " 73", "73" is called as "80" and "80" is called as "81". Which of the following is a prime number?
1
76
2
4
3
80
4
73
If "4" is called as "76", "76" is called as "75", "75" is called as "6", "6" is called as " 73", "73" is called as "80" and "80" is called as "81". Which of the following is a prime number?