It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 121 066 009 is not a prime number.
For example, 121 066 009 can be divided by 11 003: 121 066 009 / 11003 = 11 003.
For 121 066 009 to be a prime number, it would have been required that 121 066 009 has only two divisors, i.e., itself and 1.
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121 066 009 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 121 066 009 is 11 003.
Therefore, the square root of 121 066 009 is an integer, and as a consequence 121 066 009 is a perfect square.
As a consequence, 11 003 is the square root of 121 066 009.
The square of a number (here 121 066 009) is the result of the product of this number (121 066 009) by itself (i.e., 121 066 009 × 121 066 009); the square of 121 066 009 is sometimes called "raising 121 066 009 to the power 2", or "121 066 009 squared".
The square of 121 066 009 is 14 656 978 535 188 080 because 121 066 009 × 121 066 009 = 121 066 0092 = 14 656 978 535 188 080.
As a consequence, 121 066 009 is the square root of 14 656 978 535 188 080.
121 066 009 is a number with 9 digits.
The multiples of 121 066 009 are all integers evenly divisible by 121 066 009, that is all numbers such that the remainder of the division by 121 066 009 is zero. There are infinitely many multiples of 121 066 009. The smallest multiples of 121 066 009 are: