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How can we know whether a number is a perfect square number...?⭐⭐
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1️⃣At first, we will observe the unit digit of the given number.
2️⃣If the unit's digit is 2 , 3 ,7 or 8, then the given number is surely not a perfect square number.
3️⃣Also if the given number ends with odd number of zeroes, then surely it is not a perfect square.
4️⃣However if the unit's digit has 4, 5, 6, or 9 , then we will do the prime factorization of the given number in order to check whether it is a perfect square or not.
5️⃣If all the prime factors occur in pairs in the prime factorization of the given number, then the given number is a perfect square number and if they do not occur in pairs then it is not a perfect square number.
6️⃣If the given number ends with even number of zeroes, then also we will apply the above method of prime factorisation to check whether the given number is a perfect square or not.
2️⃣If the unit's digit is 2 , 3 ,7 or 8, then the given number is surely not a perfect square number.
3️⃣Also if the given number ends with odd number of zeroes, then surely it is not a perfect square.
4️⃣However if the unit's digit has 4, 5, 6, or 9 , then we will do the prime factorization of the given number in order to check whether it is a perfect square or not.
5️⃣If all the prime factors occur in pairs in the prime factorization of the given number, then the given number is a perfect square number and if they do not occur in pairs then it is not a perfect square number.
6️⃣If the given number ends with even number of zeroes, then also we will apply the above method of prime factorisation to check whether the given number is a perfect square or not.
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