Tell which number is prime 15 23 45 51

A.45
B.23
C.15
D.51

4 answers

https://whatis.techtarget.com/definition/prime-number
SHUT UP MS. SUE NOBODY LIKES U BC U NEVER GIVE ANSWERS SO YEA SHUT UP AND GO HOME HEH
I got 23 for the prime number
Yeah, it's 23! @someone is right.