It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 742 122 is not a prime number.
For example, 742 122 can be divided by 2: 742 122 / 2 = 371 061.
For 742 122 to be a prime number, it would have been required that 742 122 has only two divisors, i.e., itself and 1.
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742 122 is an even number, because it is evenly divisible by 2: 742 122 / 2 = 371 061.
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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 742 122 is about 861.465.
Thus, the square root of 742 122 is not an integer, and therefore 742 122 is not a square number.
The square of a number (here 742 122) is the result of the product of this number (742 122) by itself (i.e., 742 122 × 742 122); the square of 742 122 is sometimes called "raising 742 122 to the power 2", or "742 122 squared".
The square of 742 122 is 550 745 062 884 because 742 122 × 742 122 = 742 1222 = 550 745 062 884.
As a consequence, 742 122 is the square root of 550 745 062 884.
The multiples of 742 122 are all integers evenly divisible by 742 122, that is all numbers such that the remainder of the division by 742 122 is zero. There are infinitely many multiples of 742 122. The smallest multiples of 742 122 are: