It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 138 133 009 is not a prime number.
For example, 138 133 009 can be divided by 7: 138 133 009 / 7 = 19 733 287.
For 138 133 009 to be a prime number, it would have been required that 138 133 009 has only two divisors, i.e., itself and 1.
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138 133 009 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 138 133 009 is 11 753.
Therefore, the square root of 138 133 009 is an integer, and as a consequence 138 133 009 is a perfect square.
As a consequence, 11 753 is the square root of 138 133 009.
The square of a number (here 138 133 009) is the result of the product of this number (138 133 009) by itself (i.e., 138 133 009 × 138 133 009); the square of 138 133 009 is sometimes called "raising 138 133 009 to the power 2", or "138 133 009 squared".
The square of 138 133 009 is 19 080 728 175 394 080 because 138 133 009 × 138 133 009 = 138 133 0092 = 19 080 728 175 394 080.
As a consequence, 138 133 009 is the square root of 19 080 728 175 394 080.
138 133 009 is a number with 9 digits.
The multiples of 138 133 009 are all integers evenly divisible by 138 133 009, that is all numbers such that the remainder of the division by 138 133 009 is zero. There are infinitely many multiples of 138 133 009. The smallest multiples of 138 133 009 are: