It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 629 742 is not a prime number.
For example, 629 742 can be divided by 2: 629 742 / 2 = 314 871.
For 629 742 to be a prime number, it would have been required that 629 742 has only two divisors, i.e., itself and 1.
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629 742 is an even number, because it is evenly divisible by 2: 629 742 / 2 = 314 871.
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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 629 742 is about 793.563.
Thus, the square root of 629 742 is not an integer, and therefore 629 742 is not a square number.
The square of a number (here 629 742) is the result of the product of this number (629 742) by itself (i.e., 629 742 × 629 742); the square of 629 742 is sometimes called "raising 629 742 to the power 2", or "629 742 squared".
The square of 629 742 is 396 574 986 564 because 629 742 × 629 742 = 629 7422 = 396 574 986 564.
As a consequence, 629 742 is the square root of 396 574 986 564.
The multiples of 629 742 are all integers evenly divisible by 629 742, that is all numbers such that the remainder of the division by 629 742 is zero. There are infinitely many multiples of 629 742. The smallest multiples of 629 742 are: