It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 842 298 012 is not a prime number.
For example, 842 298 012 can be divided by 2: 842 298 012 / 2 = 421 149 006.
For 842 298 012 to be a prime number, it would have been required that 842 298 012 has only two divisors, i.e., itself and 1.
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842 298 012 is an even number, because it is evenly divisible by 2: 842 298 012 / 2 = 421 149 006.
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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 842 298 012 is about 29 022.371.
Thus, the square root of 842 298 012 is not an integer, and therefore 842 298 012 is not a square number.
The square of a number (here 842 298 012) is the result of the product of this number (842 298 012) by itself (i.e., 842 298 012 × 842 298 012); the square of 842 298 012 is sometimes called "raising 842 298 012 to the power 2", or "842 298 012 squared".
The square of 842 298 012 is 709 465 941 019 152 128 because 842 298 012 × 842 298 012 = 842 298 0122 = 709 465 941 019 152 128.
As a consequence, 842 298 012 is the square root of 709 465 941 019 152 128.
842 298 012 is a number with 9 digits.
The multiples of 842 298 012 are all integers evenly divisible by 842 298 012, that is all numbers such that the remainder of the division by 842 298 012 is zero. There are infinitely many multiples of 842 298 012. The smallest multiples of 842 298 012 are: