It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 201 221 is not a prime number.
For example, 201 221 can be divided by 31: 201 221 / 31 = 6 491.
For 201 221 to be a prime number, it would have been required that 201 221 has only two divisors, i.e., itself and 1.
Find out more:
201 221 is an odd number, because it is not evenly divisible by 2.
Find out more:
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 201 221 is about 448.577.
Thus, the square root of 201 221 is not an integer, and therefore 201 221 is not a square number.
The square of a number (here 201 221) is the result of the product of this number (201 221) by itself (i.e., 201 221 × 201 221); the square of 201 221 is sometimes called "raising 201 221 to the power 2", or "201 221 squared".
The square of 201 221 is 40 489 890 841 because 201 221 × 201 221 = 201 2212 = 40 489 890 841.
As a consequence, 201 221 is the square root of 40 489 890 841.
The multiples of 201 221 are all integers evenly divisible by 201 221, that is all numbers such that the remainder of the division by 201 221 is zero. There are infinitely many multiples of 201 221. The smallest multiples of 201 221 are: