It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 267 346 is not a prime number.
For example, 267 346 can be divided by 2: 267 346 / 2 = 133 673.
For 267 346 to be a prime number, it would have been required that 267 346 has only two divisors, i.e., itself and 1.
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267 346 is an even number, because it is evenly divisible by 2: 267 346 / 2 = 133 673.
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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 267 346 is about 517.055.
Thus, the square root of 267 346 is not an integer, and therefore 267 346 is not a square number.
The square of a number (here 267 346) is the result of the product of this number (267 346) by itself (i.e., 267 346 × 267 346); the square of 267 346 is sometimes called "raising 267 346 to the power 2", or "267 346 squared".
The square of 267 346 is 71 473 883 716 because 267 346 × 267 346 = 267 3462 = 71 473 883 716.
As a consequence, 267 346 is the square root of 71 473 883 716.
The multiples of 267 346 are all integers evenly divisible by 267 346, that is all numbers such that the remainder of the division by 267 346 is zero. There are infinitely many multiples of 267 346. The smallest multiples of 267 346 are: