It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 557 166 342 is not a prime number.
For example, 557 166 342 can be divided by 2: 557 166 342 / 2 = 278 583 171.
For 557 166 342 to be a prime number, it would have been required that 557 166 342 has only two divisors, i.e., itself and 1.
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557 166 342 is an even number, because it is evenly divisible by 2: 557 166 342 / 2 = 278 583 171.
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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 557 166 342 is about 23 604.371.
Thus, the square root of 557 166 342 is not an integer, and therefore 557 166 342 is not a square number.
The square of a number (here 557 166 342) is the result of the product of this number (557 166 342) by itself (i.e., 557 166 342 × 557 166 342); the square of 557 166 342 is sometimes called "raising 557 166 342 to the power 2", or "557 166 342 squared".
The square of 557 166 342 is 310 434 332 657 660 992 because 557 166 342 × 557 166 342 = 557 166 3422 = 310 434 332 657 660 992.
As a consequence, 557 166 342 is the square root of 310 434 332 657 660 992.
557 166 342 is a number with 9 digits.
The multiples of 557 166 342 are all integers evenly divisible by 557 166 342, that is all numbers such that the remainder of the division by 557 166 342 is zero. There are infinitely many multiples of 557 166 342. The smallest multiples of 557 166 342 are: