It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 300 420 166 is not a prime number.
For example, 300 420 166 can be divided by 2: 300 420 166 / 2 = 150 210 083.
For 300 420 166 to be a prime number, it would have been required that 300 420 166 has only two divisors, i.e., itself and 1.
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300 420 166 is an even number, because it is evenly divisible by 2: 300 420 166 / 2 = 150 210 083.
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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 300 420 166 is about 17 332.633.
Thus, the square root of 300 420 166 is not an integer, and therefore 300 420 166 is not a square number.
The square of a number (here 300 420 166) is the result of the product of this number (300 420 166) by itself (i.e., 300 420 166 × 300 420 166); the square of 300 420 166 is sometimes called "raising 300 420 166 to the power 2", or "300 420 166 squared".
The square of 300 420 166 is 90 252 276 139 467 552 because 300 420 166 × 300 420 166 = 300 420 1662 = 90 252 276 139 467 552.
As a consequence, 300 420 166 is the square root of 90 252 276 139 467 552.
300 420 166 is a number with 9 digits.
The multiples of 300 420 166 are all integers evenly divisible by 300 420 166, that is all numbers such that the remainder of the division by 300 420 166 is zero. There are infinitely many multiples of 300 420 166. The smallest multiples of 300 420 166 are: