It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 188 402 is not a prime number.
For example, 188 402 can be divided by 2: 188 402 / 2 = 94 201.
For 188 402 to be a prime number, it would have been required that 188 402 has only two divisors, i.e., itself and 1.
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188 402 is an even number, because it is evenly divisible by 2: 188 402 / 2 = 94 201.
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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 188 402 is about 434.053.
Thus, the square root of 188 402 is not an integer, and therefore 188 402 is not a square number.
The square of a number (here 188 402) is the result of the product of this number (188 402) by itself (i.e., 188 402 × 188 402); the square of 188 402 is sometimes called "raising 188 402 to the power 2", or "188 402 squared".
The square of 188 402 is 35 495 313 604 because 188 402 × 188 402 = 188 4022 = 35 495 313 604.
As a consequence, 188 402 is the square root of 35 495 313 604.
The multiples of 188 402 are all integers evenly divisible by 188 402, that is all numbers such that the remainder of the division by 188 402 is zero. There are infinitely many multiples of 188 402. The smallest multiples of 188 402 are: