It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 201 616 509 is not a prime number.
For example, 201 616 509 can be divided by 3: 201 616 509 / 3 = 67 205 503.
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For 201 616 509 to be a prime number, it would have been required that 201 616 509 has only two divisors, i.e., itself and 1.
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201 616 509 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 201 616 509 is about 14 199.173.
Thus, the square root of 201 616 509 is not an integer, and therefore 201 616 509 is not a square number.
The square of a number (here 201 616 509) is the result of the product of this number (201 616 509) by itself (i.e., 201 616 509 × 201 616 509); the square of 201 616 509 is sometimes called "raising 201 616 509 to the power 2", or "201 616 509 squared".
The square of 201 616 509 is 40 649 216 701 347 080 because 201 616 509 × 201 616 509 = 201 616 5092 = 40 649 216 701 347 080.
As a consequence, 201 616 509 is the square root of 40 649 216 701 347 080.
201 616 509 is a number with 9 digits.
The multiples of 201 616 509 are all integers evenly divisible by 201 616 509, that is all numbers such that the remainder of the division by 201 616 509 is zero. There are infinitely many multiples of 201 616 509. The smallest multiples of 201 616 509 are: