It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 400 493 401 is not a prime number.
For example, 400 493 401 can be divided by 7: 400 493 401 / 7 = 57 213 343.
For 400 493 401 to be a prime number, it would have been required that 400 493 401 has only two divisors, i.e., itself and 1.
Find out more:
400 493 401 is an odd number, because it is not evenly divisible by 2.
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 400 493 401 is about 20 012.331.
Thus, the square root of 400 493 401 is not an integer, and therefore 400 493 401 is not a square number.
The square of a number (here 400 493 401) is the result of the product of this number (400 493 401) by itself (i.e., 400 493 401 × 400 493 401); the square of 400 493 401 is sometimes called "raising 400 493 401 to the power 2", or "400 493 401 squared".
The square of 400 493 401 is 160 394 964 244 546 816 because 400 493 401 × 400 493 401 = 400 493 4012 = 160 394 964 244 546 816.
As a consequence, 400 493 401 is the square root of 160 394 964 244 546 816.
400 493 401 is a number with 9 digits.
The multiples of 400 493 401 are all integers evenly divisible by 400 493 401, that is all numbers such that the remainder of the division by 400 493 401 is zero. There are infinitely many multiples of 400 493 401. The smallest multiples of 400 493 401 are: