It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 918 948 is not a prime number.
For example, 918 948 can be divided by 2: 918 948 / 2 = 459 474.
For 918 948 to be a prime number, it would have been required that 918 948 has only two divisors, i.e., itself and 1.
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918 948 is an even number, because it is evenly divisible by 2: 918 948 / 2 = 459 474.
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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 918 948 is about 958.618.
Thus, the square root of 918 948 is not an integer, and therefore 918 948 is not a square number.
The square of a number (here 918 948) is the result of the product of this number (918 948) by itself (i.e., 918 948 × 918 948); the square of 918 948 is sometimes called "raising 918 948 to the power 2", or "918 948 squared".
The square of 918 948 is 844 465 426 704 because 918 948 × 918 948 = 918 9482 = 844 465 426 704.
As a consequence, 918 948 is the square root of 844 465 426 704.
The multiples of 918 948 are all integers evenly divisible by 918 948, that is all numbers such that the remainder of the division by 918 948 is zero. There are infinitely many multiples of 918 948. The smallest multiples of 918 948 are: