It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 40 006 513 is not a prime number.
For example, 40 006 513 can be divided by 293: 40 006 513 / 293 = 136 541.
For 40 006 513 to be a prime number, it would have been required that 40 006 513 has only two divisors, i.e., itself and 1.
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40 006 513 is an odd number, because it is not evenly divisible by 2.
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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 40 006 513 is about 6 325.070.
Thus, the square root of 40 006 513 is not an integer, and therefore 40 006 513 is not a square number.
The square of a number (here 40 006 513) is the result of the product of this number (40 006 513) by itself (i.e., 40 006 513 × 40 006 513); the square of 40 006 513 is sometimes called "raising 40 006 513 to the power 2", or "40 006 513 squared".
The square of 40 006 513 is 1 600 521 082 419 169 because 40 006 513 × 40 006 513 = 40 006 5132 = 1 600 521 082 419 169.
As a consequence, 40 006 513 is the square root of 1 600 521 082 419 169.
40 006 513 is a number with 8 digits.
The multiples of 40 006 513 are all integers evenly divisible by 40 006 513, that is all numbers such that the remainder of the division by 40 006 513 is zero. There are infinitely many multiples of 40 006 513. The smallest multiples of 40 006 513 are: