Unique properties of ‘37’ and ‘73’
‘37’ is the 12th prime number and ‘73’ is the 21st prime number. ‘73’ is the mirror image of 37 and 21 is the mirror image of 12. Moreover, the factors of 21 are 3 and 7, the digits which constitute 37 and 73. 73 is an ‘emirp’ (prime spelled backwards). When we reverse the…