It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 263 169 is not a prime number.
For example, 263 169 can be divided by 3: 263 169 / 3 = 87 723.
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For 263 169 to be a prime number, it would have been required that 263 169 has only two divisors, i.e., itself and 1.
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263 169 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 263 169 is 513.
Therefore, the square root of 263 169 is an integer, and as a consequence 263 169 is a perfect square.
The square of a number (here 263 169) is the result of the product of this number (263 169) by itself (i.e., 263 169 × 263 169); the square of 263 169 is sometimes called "raising 263 169 to the power 2", or "263 169 squared".
The square of 263 169 is 69 257 922 561 because 263 169 × 263 169 = 263 1692 = 69 257 922 561.
As a consequence, 263 169 is the square root of 69 257 922 561.
The multiples of 263 169 are all integers evenly divisible by 263 169, that is all numbers such that the remainder of the division by 263 169 is zero. There are infinitely many multiples of 263 169. The smallest multiples of 263 169 are: