It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 742 664 is not a prime number.
For example, 742 664 can be divided by 2: 742 664 / 2 = 371 332.
For 742 664 to be a prime number, it would have been required that 742 664 has only two divisors, i.e., itself and 1.
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742 664 is an even number, because it is evenly divisible by 2: 742 664 / 2 = 371 332.
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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 742 664 is about 861.780.
Thus, the square root of 742 664 is not an integer, and therefore 742 664 is not a square number.
The square of a number (here 742 664) is the result of the product of this number (742 664) by itself (i.e., 742 664 × 742 664); the square of 742 664 is sometimes called "raising 742 664 to the power 2", or "742 664 squared".
The square of 742 664 is 551 549 816 896 because 742 664 × 742 664 = 742 6642 = 551 549 816 896.
As a consequence, 742 664 is the square root of 551 549 816 896.
The multiples of 742 664 are all integers evenly divisible by 742 664, that is all numbers such that the remainder of the division by 742 664 is zero. There are infinitely many multiples of 742 664. The smallest multiples of 742 664 are: