It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 274 242 is not a prime number.
For example, 274 242 can be divided by 2: 274 242 / 2 = 137 121.
For 274 242 to be a prime number, it would have been required that 274 242 has only two divisors, i.e., itself and 1.
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274 242 is an even number, because it is evenly divisible by 2: 274 242 / 2 = 137 121.
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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 274 242 is about 523.681.
Thus, the square root of 274 242 is not an integer, and therefore 274 242 is not a square number.
The square of a number (here 274 242) is the result of the product of this number (274 242) by itself (i.e., 274 242 × 274 242); the square of 274 242 is sometimes called "raising 274 242 to the power 2", or "274 242 squared".
The square of 274 242 is 75 208 674 564 because 274 242 × 274 242 = 274 2422 = 75 208 674 564.
As a consequence, 274 242 is the square root of 75 208 674 564.
The multiples of 274 242 are all integers evenly divisible by 274 242, that is all numbers such that the remainder of the division by 274 242 is zero. There are infinitely many multiples of 274 242. The smallest multiples of 274 242 are: