Question

the following is a perfect Square ? 32,66, 87,101?​

Answer 1

Answer:

is a prime number by itself.

So, it is not a perfect square.

⇒ 12=2×2×3

12

=

2

2

×3

12

=2

3

∴ 12 is not perfect square.

⇒ 16=2×2×2×2×2

16=2

4

16

=2

2

=4

∴ 16 is a perfect square.

⇒ 32=2×2×2×2×2

32=2

5

32

=

2

5

32

=4

2

∴ 32 is not perfect square.

⇒ 36=2×2×3×3

36

=

2

2

×3

2

36

=6

∴ 36 is a perfect square.

⇒ 50=2×5×5

50

=

5

2

×2

50

=5

2

∴ 50 is not perfect square.

⇒ 79 is a prime number.

So, it is not a perfect square.

⇒ 81=3×3×3×3

81

=

3

4

81

=9

∴ 81 is a perfect square.

⇒ 111 is a prime number.

So, it is not a perfect square.

⇒ 121=11×11

121

=

11

2

121

=11

∴ 121 is a perfect square.

Answer 2

The ans is —

The following are not perfect squares