It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 265 267 is not a prime number.
For example, 265 267 can be divided by 31: 265 267 / 31 = 8 557.
For 265 267 to be a prime number, it would have been required that 265 267 has only two divisors, i.e., itself and 1.
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265 267 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 265 267 is about 515.041.
Thus, the square root of 265 267 is not an integer, and therefore 265 267 is not a square number.
The square of a number (here 265 267) is the result of the product of this number (265 267) by itself (i.e., 265 267 × 265 267); the square of 265 267 is sometimes called "raising 265 267 to the power 2", or "265 267 squared".
The square of 265 267 is 70 366 581 289 because 265 267 × 265 267 = 265 2672 = 70 366 581 289.
As a consequence, 265 267 is the square root of 70 366 581 289.
The multiples of 265 267 are all integers evenly divisible by 265 267, that is all numbers such that the remainder of the division by 265 267 is zero. There are infinitely many multiples of 265 267. The smallest multiples of 265 267 are: