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Square Number
Is 21 square ?
Is 21 a perfect square? [SOLVED]
Answer
21 is
not
a
perfect square
.
Related links:
Is 21 a composite number?
Is 21 an even number?
Is 21 an irrational number?
Is 21 an odd number?
Is 21 a perfect number?
Is 21 a prime number?
Is 21 a rational number?
What are the factors of 21?
What are the multiples of 21?
What is the prime factorization of 21?
