It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 360 402 is not a prime number.
For example, 360 402 can be divided by 2: 360 402 / 2 = 180 201.
For 360 402 to be a prime number, it would have been required that 360 402 has only two divisors, i.e., itself and 1.
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360 402 is an even number, because it is evenly divisible by 2: 360 402 / 2 = 180 201.
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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 360 402 is about 600.335.
Thus, the square root of 360 402 is not an integer, and therefore 360 402 is not a square number.
The square of a number (here 360 402) is the result of the product of this number (360 402) by itself (i.e., 360 402 × 360 402); the square of 360 402 is sometimes called "raising 360 402 to the power 2", or "360 402 squared".
The square of 360 402 is 129 889 601 604 because 360 402 × 360 402 = 360 4022 = 129 889 601 604.
As a consequence, 360 402 is the square root of 129 889 601 604.
The multiples of 360 402 are all integers evenly divisible by 360 402, that is all numbers such that the remainder of the division by 360 402 is zero. There are infinitely many multiples of 360 402. The smallest multiples of 360 402 are: