It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 743 664 is not a prime number.
For example, 743 664 can be divided by 2: 743 664 / 2 = 371 832.
For 743 664 to be a prime number, it would have been required that 743 664 has only two divisors, i.e., itself and 1.
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743 664 is an even number, because it is evenly divisible by 2: 743 664 / 2 = 371 832.
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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 743 664 is about 862.360.
Thus, the square root of 743 664 is not an integer, and therefore 743 664 is not a square number.
The square of a number (here 743 664) is the result of the product of this number (743 664) by itself (i.e., 743 664 × 743 664); the square of 743 664 is sometimes called "raising 743 664 to the power 2", or "743 664 squared".
The square of 743 664 is 553 036 144 896 because 743 664 × 743 664 = 743 6642 = 553 036 144 896.
As a consequence, 743 664 is the square root of 553 036 144 896.
The multiples of 743 664 are all integers evenly divisible by 743 664, that is all numbers such that the remainder of the division by 743 664 is zero. There are infinitely many multiples of 743 664. The smallest multiples of 743 664 are: