It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 169 142 is not a prime number.
For example, 169 142 can be divided by 2: 169 142 / 2 = 84 571.
For 169 142 to be a prime number, it would have been required that 169 142 has only two divisors, i.e., itself and 1.
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169 142 is an even number, because it is evenly divisible by 2: 169 142 / 2 = 84 571.
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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 169 142 is about 411.269.
Thus, the square root of 169 142 is not an integer, and therefore 169 142 is not a square number.
The square of a number (here 169 142) is the result of the product of this number (169 142) by itself (i.e., 169 142 × 169 142); the square of 169 142 is sometimes called "raising 169 142 to the power 2", or "169 142 squared".
The square of 169 142 is 28 609 016 164 because 169 142 × 169 142 = 169 1422 = 28 609 016 164.
As a consequence, 169 142 is the square root of 28 609 016 164.
The multiples of 169 142 are all integers evenly divisible by 169 142, that is all numbers such that the remainder of the division by 169 142 is zero. There are infinitely many multiples of 169 142. The smallest multiples of 169 142 are: