It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 746 742 is not a prime number.
For example, 746 742 can be divided by 2: 746 742 / 2 = 373 371.
For 746 742 to be a prime number, it would have been required that 746 742 has only two divisors, i.e., itself and 1.
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746 742 is an even number, because it is evenly divisible by 2: 746 742 / 2 = 373 371.
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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 746 742 is about 864.142.
Thus, the square root of 746 742 is not an integer, and therefore 746 742 is not a square number.
The square of a number (here 746 742) is the result of the product of this number (746 742) by itself (i.e., 746 742 × 746 742); the square of 746 742 is sometimes called "raising 746 742 to the power 2", or "746 742 squared".
The square of 746 742 is 557 623 614 564 because 746 742 × 746 742 = 746 7422 = 557 623 614 564.
As a consequence, 746 742 is the square root of 557 623 614 564.
The multiples of 746 742 are all integers evenly divisible by 746 742, that is all numbers such that the remainder of the division by 746 742 is zero. There are infinitely many multiples of 746 742. The smallest multiples of 746 742 are: