Question

Which number below is a prime number?
A.101
B.105
C.39
D.15

Answer 1

A

Answer 2

thanks

Answer 3

105 can be divided by not only 1 and itself but also 5 and 21
39 can be divided by not only 1 and itself but also 3 and 13
15 can be divided by not only 1 and itself but also 3 and 5

Answer 4

thanks for the explination

Answer 5

No problem!