Show that 571 is a prime number.
Let = x = 571
√x = √571
Now 571 lies between the perfect squares of (23)2 and(24)2
Prime numbers less than 24 are 2,3,5,7, 1,1, 1,3, 17,19,23.
Since 571 is not divisible by any of the above numbers.
So, 571 is a prime number.
Let x=571⇒√x=√571Now 571 lies between the perfect squares of (23)2 and (24)2 Prime numbers less than 24 are 2,3,5,7,11,13,17,19,23Since 571 is not divisible by any of the above numbers 571 is a prime number