It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 400 316 is not a prime number.
For example, 400 316 can be divided by 2: 400 316 / 2 = 200 158.
For 400 316 to be a prime number, it would have been required that 400 316 has only two divisors, i.e., itself and 1.
Find out more:
400 316 is an even number, because it is evenly divisible by 2: 400 316 / 2 = 200 158.
Find out more:
A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 400 316 is about 632.705.
Thus, the square root of 400 316 is not an integer, and therefore 400 316 is not a square number.
The square of a number (here 400 316) is the result of the product of this number (400 316) by itself (i.e., 400 316 × 400 316); the square of 400 316 is sometimes called "raising 400 316 to the power 2", or "400 316 squared".
The square of 400 316 is 160 252 899 856 because 400 316 × 400 316 = 400 3162 = 160 252 899 856.
As a consequence, 400 316 is the square root of 160 252 899 856.
The multiples of 400 316 are all integers evenly divisible by 400 316, that is all numbers such that the remainder of the division by 400 316 is zero. There are infinitely many multiples of 400 316. The smallest multiples of 400 316 are: