It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 197 216 is not a prime number.
For example, 197 216 can be divided by 2: 197 216 / 2 = 98 608.
For 197 216 to be a prime number, it would have been required that 197 216 has only two divisors, i.e., itself and 1.
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197 216 is an even number, because it is evenly divisible by 2: 197 216 / 2 = 98 608.
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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 197 216 is about 444.090.
Thus, the square root of 197 216 is not an integer, and therefore 197 216 is not a square number.
The square of a number (here 197 216) is the result of the product of this number (197 216) by itself (i.e., 197 216 × 197 216); the square of 197 216 is sometimes called "raising 197 216 to the power 2", or "197 216 squared".
The square of 197 216 is 38 894 150 656 because 197 216 × 197 216 = 197 2162 = 38 894 150 656.
As a consequence, 197 216 is the square root of 38 894 150 656.
The multiples of 197 216 are all integers evenly divisible by 197 216, that is all numbers such that the remainder of the division by 197 216 is zero. There are infinitely many multiples of 197 216. The smallest multiples of 197 216 are: