It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 142 308 674 is not a prime number.
For example, 142 308 674 can be divided by 2: 142 308 674 / 2 = 71 154 337.
For 142 308 674 to be a prime number, it would have been required that 142 308 674 has only two divisors, i.e., itself and 1.
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142 308 674 is an even number, because it is evenly divisible by 2: 142 308 674 / 2 = 71 154 337.
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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 142 308 674 is about 11 929.320.
Thus, the square root of 142 308 674 is not an integer, and therefore 142 308 674 is not a square number.
The square of a number (here 142 308 674) is the result of the product of this number (142 308 674) by itself (i.e., 142 308 674 × 142 308 674); the square of 142 308 674 is sometimes called "raising 142 308 674 to the power 2", or "142 308 674 squared".
The square of 142 308 674 is 20 251 758 695 638 276 because 142 308 674 × 142 308 674 = 142 308 6742 = 20 251 758 695 638 276.
As a consequence, 142 308 674 is the square root of 20 251 758 695 638 276.
142 308 674 is a number with 9 digits.
The multiples of 142 308 674 are all integers evenly divisible by 142 308 674, that is all numbers such that the remainder of the division by 142 308 674 is zero. There are infinitely many multiples of 142 308 674. The smallest multiples of 142 308 674 are: