It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 142 713 742 is not a prime number.
For example, 142 713 742 can be divided by 2: 142 713 742 / 2 = 71 356 871.
For 142 713 742 to be a prime number, it would have been required that 142 713 742 has only two divisors, i.e., itself and 1.
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142 713 742 is an even number, because it is evenly divisible by 2: 142 713 742 / 2 = 71 356 871.
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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 142 713 742 is about 11 946.286.
Thus, the square root of 142 713 742 is not an integer, and therefore 142 713 742 is not a square number.
The square of a number (here 142 713 742) is the result of the product of this number (142 713 742) by itself (i.e., 142 713 742 × 142 713 742); the square of 142 713 742 is sometimes called "raising 142 713 742 to the power 2", or "142 713 742 squared".
The square of 142 713 742 is 20 367 212 155 642 564 because 142 713 742 × 142 713 742 = 142 713 7422 = 20 367 212 155 642 564.
As a consequence, 142 713 742 is the square root of 20 367 212 155 642 564.
142 713 742 is a number with 9 digits.
The multiples of 142 713 742 are all integers evenly divisible by 142 713 742, that is all numbers such that the remainder of the division by 142 713 742 is zero. There are infinitely many multiples of 142 713 742. The smallest multiples of 142 713 742 are: