It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 122 342 is not a prime number.
For example, 122 342 can be divided by 2: 122 342 / 2 = 61 171.
For 122 342 to be a prime number, it would have been required that 122 342 has only two divisors, i.e., itself and 1.
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122 342 is an even number, because it is evenly divisible by 2: 122 342 / 2 = 61 171.
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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 122 342 is about 349.774.
Thus, the square root of 122 342 is not an integer, and therefore 122 342 is not a square number.
The square of a number (here 122 342) is the result of the product of this number (122 342) by itself (i.e., 122 342 × 122 342); the square of 122 342 is sometimes called "raising 122 342 to the power 2", or "122 342 squared".
The square of 122 342 is 14 967 564 964 because 122 342 × 122 342 = 122 3422 = 14 967 564 964.
As a consequence, 122 342 is the square root of 14 967 564 964.
The multiples of 122 342 are all integers evenly divisible by 122 342, that is all numbers such that the remainder of the division by 122 342 is zero. There are infinitely many multiples of 122 342. The smallest multiples of 122 342 are: