It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 438 413 is not a prime number.
For example, 438 413 can be divided by 17: 438 413 / 17 = 25 789.
For 438 413 to be a prime number, it would have been required that 438 413 has only two divisors, i.e., itself and 1.
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438 413 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 438 413 is about 662.128.
Thus, the square root of 438 413 is not an integer, and therefore 438 413 is not a square number.
The square of a number (here 438 413) is the result of the product of this number (438 413) by itself (i.e., 438 413 × 438 413); the square of 438 413 is sometimes called "raising 438 413 to the power 2", or "438 413 squared".
The square of 438 413 is 192 205 958 569 because 438 413 × 438 413 = 438 4132 = 192 205 958 569.
As a consequence, 438 413 is the square root of 192 205 958 569.
The multiples of 438 413 are all integers evenly divisible by 438 413, that is all numbers such that the remainder of the division by 438 413 is zero. There are infinitely many multiples of 438 413. The smallest multiples of 438 413 are: