It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 359 138 is not a prime number.
For example, 359 138 can be divided by 2: 359 138 / 2 = 179 569.
For 359 138 to be a prime number, it would have been required that 359 138 has only two divisors, i.e., itself and 1.
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359 138 is an even number, because it is evenly divisible by 2: 359 138 / 2 = 179 569.
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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 359 138 is about 599.281.
Thus, the square root of 359 138 is not an integer, and therefore 359 138 is not a square number.
The square of a number (here 359 138) is the result of the product of this number (359 138) by itself (i.e., 359 138 × 359 138); the square of 359 138 is sometimes called "raising 359 138 to the power 2", or "359 138 squared".
The square of 359 138 is 128 980 103 044 because 359 138 × 359 138 = 359 1382 = 128 980 103 044.
As a consequence, 359 138 is the square root of 128 980 103 044.
The multiples of 359 138 are all integers evenly divisible by 359 138, that is all numbers such that the remainder of the division by 359 138 is zero. There are infinitely many multiples of 359 138. The smallest multiples of 359 138 are: