It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 427 166 201 is not a prime number.
For example, 427 166 201 can be divided by 7: 427 166 201 / 7 = 61 023 743.
For 427 166 201 to be a prime number, it would have been required that 427 166 201 has only two divisors, i.e., itself and 1.
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427 166 201 is an odd number, because it is not evenly divisible by 2.
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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 427 166 201 is about 20 667.999.
Thus, the square root of 427 166 201 is not an integer, and therefore 427 166 201 is not a square number.
The square of a number (here 427 166 201) is the result of the product of this number (427 166 201) by itself (i.e., 427 166 201 × 427 166 201); the square of 427 166 201 is sometimes called "raising 427 166 201 to the power 2", or "427 166 201 squared".
The square of 427 166 201 is 182 470 963 276 772 416 because 427 166 201 × 427 166 201 = 427 166 2012 = 182 470 963 276 772 416.
As a consequence, 427 166 201 is the square root of 182 470 963 276 772 416.
427 166 201 is a number with 9 digits.
The multiples of 427 166 201 are all integers evenly divisible by 427 166 201, that is all numbers such that the remainder of the division by 427 166 201 is zero. There are infinitely many multiples of 427 166 201. The smallest multiples of 427 166 201 are: