(P*P -1) is divisible by 24 for all odd p whether prime or composite e.g let p be 119, 221, 133 . These are composite odd exhibiting the same property. This property is not peculiar to primes but to odd numbers prime or composite.
65 is not a prime number but follows your formula ie 65²=4225=4224+1=24(176)+1 So your formula is not unique one to find prime number however it calculates prime number correctly.
@@ajeethpandey the indicated formula is valid for all odd numbers whether prime or odd composite. It is not unique to the primes so it is useless to test for a prime.
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(P*P -1) is divisible by 24 for all odd p whether prime or composite e.g let p be 119, 221, 133 . These are composite odd exhibiting the same property. This property is not peculiar to primes but to odd numbers prime or composite.
Very amazing. Thanks a lot
Nice sir very useful
This method knwn to us formerly. It ain't useful for a big number as more than 4 digits.
सर बोर्ड का कलर व्हाइट कीजिए।पढ़ने में दिक्कत होती है
65 is not a prime number but follows your formula ie
65²=4225=4224+1=24(176)+1
So your formula is not unique one to find prime number however it calculates prime number correctly.
@@ajeethpandey the indicated formula is valid for all odd numbers whether prime or odd composite. It is not unique to the primes so it is useless to test for a prime.