It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 138 013 361 is not a prime number.
For example, 138 013 361 can be divided by 17: 138 013 361 / 17 = 8 118 433.
For 138 013 361 to be a prime number, it would have been required that 138 013 361 has only two divisors, i.e., itself and 1.
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138 013 361 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 138 013 361 is about 11 747.909.
Thus, the square root of 138 013 361 is not an integer, and therefore 138 013 361 is not a square number.
The square of a number (here 138 013 361) is the result of the product of this number (138 013 361) by itself (i.e., 138 013 361 × 138 013 361); the square of 138 013 361 is sometimes called "raising 138 013 361 to the power 2", or "138 013 361 squared".
The square of 138 013 361 is 19 047 687 814 516 320 because 138 013 361 × 138 013 361 = 138 013 3612 = 19 047 687 814 516 320.
As a consequence, 138 013 361 is the square root of 19 047 687 814 516 320.
138 013 361 is a number with 9 digits.
The multiples of 138 013 361 are all integers evenly divisible by 138 013 361, that is all numbers such that the remainder of the division by 138 013 361 is zero. There are infinitely many multiples of 138 013 361. The smallest multiples of 138 013 361 are: