It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 742 023 is not a prime number.
For example, 742 023 can be divided by 3: 742 023 / 3 = 247 341.
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For 742 023 to be a prime number, it would have been required that 742 023 has only two divisors, i.e., itself and 1.
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742 023 is an odd number, because it is not evenly divisible by 2.
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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 742 023 is about 861.408.
Thus, the square root of 742 023 is not an integer, and therefore 742 023 is not a square number.
The square of a number (here 742 023) is the result of the product of this number (742 023) by itself (i.e., 742 023 × 742 023); the square of 742 023 is sometimes called "raising 742 023 to the power 2", or "742 023 squared".
The square of 742 023 is 550 598 132 529 because 742 023 × 742 023 = 742 0232 = 550 598 132 529.
As a consequence, 742 023 is the square root of 550 598 132 529.
The multiples of 742 023 are all integers evenly divisible by 742 023, that is all numbers such that the remainder of the division by 742 023 is zero. There are infinitely many multiples of 742 023. The smallest multiples of 742 023 are: