It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 742 306 is not a prime number.
For example, 742 306 can be divided by 2: 742 306 / 2 = 371 153.
For 742 306 to be a prime number, it would have been required that 742 306 has only two divisors, i.e., itself and 1.
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742 306 is an even number, because it is evenly divisible by 2: 742 306 / 2 = 371 153.
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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 742 306 is about 861.572.
Thus, the square root of 742 306 is not an integer, and therefore 742 306 is not a square number.
The square of a number (here 742 306) is the result of the product of this number (742 306) by itself (i.e., 742 306 × 742 306); the square of 742 306 is sometimes called "raising 742 306 to the power 2", or "742 306 squared".
The square of 742 306 is 551 018 197 636 because 742 306 × 742 306 = 742 3062 = 551 018 197 636.
As a consequence, 742 306 is the square root of 551 018 197 636.
The multiples of 742 306 are all integers evenly divisible by 742 306, that is all numbers such that the remainder of the division by 742 306 is zero. There are infinitely many multiples of 742 306. The smallest multiples of 742 306 are: