It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 158 331 012 is not a prime number.
For example, 158 331 012 can be divided by 2: 158 331 012 / 2 = 79 165 506.
For 158 331 012 to be a prime number, it would have been required that 158 331 012 has only two divisors, i.e., itself and 1.
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158 331 012 is an even number, because it is evenly divisible by 2: 158 331 012 / 2 = 79 165 506.
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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 158 331 012 is about 12 582.965.
Thus, the square root of 158 331 012 is not an integer, and therefore 158 331 012 is not a square number.
The square of a number (here 158 331 012) is the result of the product of this number (158 331 012) by itself (i.e., 158 331 012 × 158 331 012); the square of 158 331 012 is sometimes called "raising 158 331 012 to the power 2", or "158 331 012 squared".
The square of 158 331 012 is 25 068 709 360 944 144 because 158 331 012 × 158 331 012 = 158 331 0122 = 25 068 709 360 944 144.
As a consequence, 158 331 012 is the square root of 25 068 709 360 944 144.
158 331 012 is a number with 9 digits.
The multiples of 158 331 012 are all integers evenly divisible by 158 331 012, that is all numbers such that the remainder of the division by 158 331 012 is zero. There are infinitely many multiples of 158 331 012. The smallest multiples of 158 331 012 are: