It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 742 388 is not a prime number.
For example, 742 388 can be divided by 2: 742 388 / 2 = 371 194.
For 742 388 to be a prime number, it would have been required that 742 388 has only two divisors, i.e., itself and 1.
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742 388 is an even number, because it is evenly divisible by 2: 742 388 / 2 = 371 194.
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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 742 388 is about 861.619.
Thus, the square root of 742 388 is not an integer, and therefore 742 388 is not a square number.
The square of a number (here 742 388) is the result of the product of this number (742 388) by itself (i.e., 742 388 × 742 388); the square of 742 388 is sometimes called "raising 742 388 to the power 2", or "742 388 squared".
The square of 742 388 is 551 139 942 544 because 742 388 × 742 388 = 742 3882 = 551 139 942 544.
As a consequence, 742 388 is the square root of 551 139 942 544.
The multiples of 742 388 are all integers evenly divisible by 742 388, that is all numbers such that the remainder of the division by 742 388 is zero. There are infinitely many multiples of 742 388. The smallest multiples of 742 388 are: