Question

Let p be a prime number. If p divides $a^2$ then _________, where a is a positive integer.

• A. p divides a
• B. a divides p
• C. ap divides a
• D. ap divides p

Answer 1

The correct option is A

p divides a

Let p be a prime number. If p divides $a^2$ then p divides a, where a is a positive integer.

For example: 3 divides 36(equal to $6^2$) and 3 divides 6 also.