It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 27 018 013 is not a prime number.
For example, 27 018 013 can be divided by 11: 27 018 013 / 11 = 2 456 183.
For 27 018 013 to be a prime number, it would have been required that 27 018 013 has only two divisors, i.e., itself and 1.
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27 018 013 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 27 018 013 is about 5 197.885.
Thus, the square root of 27 018 013 is not an integer, and therefore 27 018 013 is not a square number.
The square of a number (here 27 018 013) is the result of the product of this number (27 018 013) by itself (i.e., 27 018 013 × 27 018 013); the square of 27 018 013 is sometimes called "raising 27 018 013 to the power 2", or "27 018 013 squared".
The square of 27 018 013 is 729 973 026 468 169 because 27 018 013 × 27 018 013 = 27 018 0132 = 729 973 026 468 169.
As a consequence, 27 018 013 is the square root of 729 973 026 468 169.
27 018 013 is a number with 8 digits.
The multiples of 27 018 013 are all integers evenly divisible by 27 018 013, that is all numbers such that the remainder of the division by 27 018 013 is zero. There are infinitely many multiples of 27 018 013. The smallest multiples of 27 018 013 are: