Is 221 a Prime Number | Is 221 a Prime or Composite Number?
https://www.cuemath.com/numbers/is-221-a-prime-number/
WebIs 221 a perfect square? - No; Is 221 a Prime Number? No, 221 is not a prime number. The number 221 is divisible by 1, 13, 17, 221. For a number to be classified as a prime number, it should have exactly two factors. Since 221 has more than two factors, i.e. 1, 13, 17, 221, it is not a prime number. Why is 221 not a Prime Number?
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