It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 117 642 is not a prime number.
For example, 117 642 can be divided by 2: 117 642 / 2 = 58 821.
For 117 642 to be a prime number, it would have been required that 117 642 has only two divisors, i.e., itself and 1.
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117 642 is an even number, because it is evenly divisible by 2: 117 642 / 2 = 58 821.
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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 117 642 is about 342.990.
Thus, the square root of 117 642 is not an integer, and therefore 117 642 is not a square number.
The square of a number (here 117 642) is the result of the product of this number (117 642) by itself (i.e., 117 642 × 117 642); the square of 117 642 is sometimes called "raising 117 642 to the power 2", or "117 642 squared".
The square of 117 642 is 13 839 640 164 because 117 642 × 117 642 = 117 6422 = 13 839 640 164.
As a consequence, 117 642 is the square root of 13 839 640 164.
The multiples of 117 642 are all integers evenly divisible by 117 642, that is all numbers such that the remainder of the division by 117 642 is zero. There are infinitely many multiples of 117 642. The smallest multiples of 117 642 are: