It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 267 427 is not a prime number.
For example, 267 427 can be divided by 17: 267 427 / 17 = 15 731.
For 267 427 to be a prime number, it would have been required that 267 427 has only two divisors, i.e., itself and 1.
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267 427 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 267 427 is about 517.133.
Thus, the square root of 267 427 is not an integer, and therefore 267 427 is not a square number.
The square of a number (here 267 427) is the result of the product of this number (267 427) by itself (i.e., 267 427 × 267 427); the square of 267 427 is sometimes called "raising 267 427 to the power 2", or "267 427 squared".
The square of 267 427 is 71 517 200 329 because 267 427 × 267 427 = 267 4272 = 71 517 200 329.
As a consequence, 267 427 is the square root of 71 517 200 329.
The multiples of 267 427 are all integers evenly divisible by 267 427, that is all numbers such that the remainder of the division by 267 427 is zero. There are infinitely many multiples of 267 427. The smallest multiples of 267 427 are: