It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 742 126 336 is not a prime number.
For example, 742 126 336 can be divided by 2: 742 126 336 / 2 = 371 063 168.
For 742 126 336 to be a prime number, it would have been required that 742 126 336 has only two divisors, i.e., itself and 1.
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742 126 336 is an even number, because it is evenly divisible by 2: 742 126 336 / 2 = 371 063 168.
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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 742 126 336 is about 27 241.996.
Thus, the square root of 742 126 336 is not an integer, and therefore 742 126 336 is not a square number.
The square of a number (here 742 126 336) is the result of the product of this number (742 126 336) by itself (i.e., 742 126 336 × 742 126 336); the square of 742 126 336 is sometimes called "raising 742 126 336 to the power 2", or "742 126 336 squared".
The square of 742 126 336 is 550 751 498 584 784 896 because 742 126 336 × 742 126 336 = 742 126 3362 = 550 751 498 584 784 896.
As a consequence, 742 126 336 is the square root of 550 751 498 584 784 896.
742 126 336 is a number with 9 digits.
The multiples of 742 126 336 are all integers evenly divisible by 742 126 336, that is all numbers such that the remainder of the division by 742 126 336 is zero. There are infinitely many multiples of 742 126 336. The smallest multiples of 742 126 336 are: