It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 267 231 is not a prime number.
For example, 267 231 can be divided by 3: 267 231 / 3 = 89 077.
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For 267 231 to be a prime number, it would have been required that 267 231 has only two divisors, i.e., itself and 1.
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267 231 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 267 231 is about 516.944.
Thus, the square root of 267 231 is not an integer, and therefore 267 231 is not a square number.
The square of a number (here 267 231) is the result of the product of this number (267 231) by itself (i.e., 267 231 × 267 231); the square of 267 231 is sometimes called "raising 267 231 to the power 2", or "267 231 squared".
The square of 267 231 is 71 412 407 361 because 267 231 × 267 231 = 267 2312 = 71 412 407 361.
As a consequence, 267 231 is the square root of 71 412 407 361.
The multiples of 267 231 are all integers evenly divisible by 267 231, that is all numbers such that the remainder of the division by 267 231 is zero. There are infinitely many multiples of 267 231. The smallest multiples of 267 231 are: