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