No, it is not.
Incidentally, is a number p is prime then its 2 factors are 1 and p. Their sum is p+1.
If p is a perfect number then this sum must be 2p.
That is, p+1 = 2p or p = 1.
But 1 is not a prime. So no prime can be a perfect number and since 13 is prime, it cannot be a perfect number.
Chat with our AI personalities
For a number to be a perfect square, the number's square root has to be a whole number. 9 is a perfect square because its square root is a whole number, 3. If the square root of the number is a decimal, then it is not a perfect square. For example, 13 does not divide evenly so it not a perfect square.
It is both.13 is the square of +/- 3.6056, approx. However, since it is not the square of an integer, it is not a perfect square.It is also the square root of 169.
The square root of 13 is irrational. All square roots of whole numbers are irrational unless the number is a perfect square.
No, √13 is an irrational number. Only perfect squares have whole numbers square roots, they are 1², 2³, 3², 4², ... which are 1, 4, 9, 16, ...
Then the number is called a "perfect square".Then the number is called a "perfect square".Then the number is called a "perfect square".Then the number is called a "perfect square".