It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 162 169 is not a prime number.
For example, 162 169 can be divided by 7: 162 169 / 7 = 23 167.
For 162 169 to be a prime number, it would have been required that 162 169 has only two divisors, i.e., itself and 1.
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162 169 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 162 169 is about 402.702.
Thus, the square root of 162 169 is not an integer, and therefore 162 169 is not a square number.
The square of a number (here 162 169) is the result of the product of this number (162 169) by itself (i.e., 162 169 × 162 169); the square of 162 169 is sometimes called "raising 162 169 to the power 2", or "162 169 squared".
The square of 162 169 is 26 298 784 561 because 162 169 × 162 169 = 162 1692 = 26 298 784 561.
As a consequence, 162 169 is the square root of 26 298 784 561.
The multiples of 162 169 are all integers evenly divisible by 162 169, that is all numbers such that the remainder of the division by 162 169 is zero. There are infinitely many multiples of 162 169. The smallest multiples of 162 169 are: