It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 121 137 007 is not a prime number.
For example, 121 137 007 can be divided by 397: 121 137 007 / 397 = 305 131.
For 121 137 007 to be a prime number, it would have been required that 121 137 007 has only two divisors, i.e., itself and 1.
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121 137 007 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 121 137 007 is about 11 006.226.
Thus, the square root of 121 137 007 is not an integer, and therefore 121 137 007 is not a square number.
The square of a number (here 121 137 007) is the result of the product of this number (121 137 007) by itself (i.e., 121 137 007 × 121 137 007); the square of 121 137 007 is sometimes called "raising 121 137 007 to the power 2", or "121 137 007 squared".
The square of 121 137 007 is 14 674 174 464 918 048 because 121 137 007 × 121 137 007 = 121 137 0072 = 14 674 174 464 918 048.
As a consequence, 121 137 007 is the square root of 14 674 174 464 918 048.
121 137 007 is a number with 9 digits.
The multiples of 121 137 007 are all integers evenly divisible by 121 137 007, that is all numbers such that the remainder of the division by 121 137 007 is zero. There are infinitely many multiples of 121 137 007. The smallest multiples of 121 137 007 are: