It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 740 274 is not a prime number.
For example, 740 274 can be divided by 2: 740 274 / 2 = 370 137.
For 740 274 to be a prime number, it would have been required that 740 274 has only two divisors, i.e., itself and 1.
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740 274 is an even number, because it is evenly divisible by 2: 740 274 / 2 = 370 137.
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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 740 274 is about 860.392.
Thus, the square root of 740 274 is not an integer, and therefore 740 274 is not a square number.
The square of a number (here 740 274) is the result of the product of this number (740 274) by itself (i.e., 740 274 × 740 274); the square of 740 274 is sometimes called "raising 740 274 to the power 2", or "740 274 squared".
The square of 740 274 is 548 005 595 076 because 740 274 × 740 274 = 740 2742 = 548 005 595 076.
As a consequence, 740 274 is the square root of 548 005 595 076.
The multiples of 740 274 are all integers evenly divisible by 740 274, that is all numbers such that the remainder of the division by 740 274 is zero. There are infinitely many multiples of 740 274. The smallest multiples of 740 274 are: