A prime number is a natural number that can only be divided by itself and the number 1 without leaving a remsinder.Each prime number has only two factors.
Which numbers below are prime numbers?
21,23,25,27,39,31
23, 31
23 ,31
23 , 31
23 & 31
23 &31
23, 31
ReplyDelete23 ,31
ReplyDelete23 , 31
ReplyDelete23 & 31
ReplyDelete23 &31
ReplyDelete