It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 494 429 816 is not a prime number.
For example, 494 429 816 can be divided by 2: 494 429 816 / 2 = 247 214 908.
For 494 429 816 to be a prime number, it would have been required that 494 429 816 has only two divisors, i.e., itself and 1.
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494 429 816 is an even number, because it is evenly divisible by 2: 494 429 816 / 2 = 247 214 908.
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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 494 429 816 is about 22 235.778.
Thus, the square root of 494 429 816 is not an integer, and therefore 494 429 816 is not a square number.
The square of a number (here 494 429 816) is the result of the product of this number (494 429 816) by itself (i.e., 494 429 816 × 494 429 816); the square of 494 429 816 is sometimes called "raising 494 429 816 to the power 2", or "494 429 816 squared".
The square of 494 429 816 is 244 460 842 949 793 856 because 494 429 816 × 494 429 816 = 494 429 8162 = 244 460 842 949 793 856.
As a consequence, 494 429 816 is the square root of 244 460 842 949 793 856.
494 429 816 is a number with 9 digits.
The multiples of 494 429 816 are all integers evenly divisible by 494 429 816, that is all numbers such that the remainder of the division by 494 429 816 is zero. There are infinitely many multiples of 494 429 816. The smallest multiples of 494 429 816 are: