It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 211 169 is not a prime number.
For example, 211 169 can be divided by 7: 211 169 / 7 = 30 167.
For 211 169 to be a prime number, it would have been required that 211 169 has only two divisors, i.e., itself and 1.
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211 169 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 211 169 is about 459.531.
Thus, the square root of 211 169 is not an integer, and therefore 211 169 is not a square number.
The square of a number (here 211 169) is the result of the product of this number (211 169) by itself (i.e., 211 169 × 211 169); the square of 211 169 is sometimes called "raising 211 169 to the power 2", or "211 169 squared".
The square of 211 169 is 44 592 346 561 because 211 169 × 211 169 = 211 1692 = 44 592 346 561.
As a consequence, 211 169 is the square root of 44 592 346 561.
The multiples of 211 169 are all integers evenly divisible by 211 169, that is all numbers such that the remainder of the division by 211 169 is zero. There are infinitely many multiples of 211 169. The smallest multiples of 211 169 are: