It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 13 427 674 is not a prime number.
For example, 13 427 674 can be divided by 2: 13 427 674 / 2 = 6 713 837.
For 13 427 674 to be a prime number, it would have been required that 13 427 674 has only two divisors, i.e., itself and 1.
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13 427 674 is an even number, because it is evenly divisible by 2: 13 427 674 / 2 = 6 713 837.
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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 13 427 674 is about 3 664.379.
Thus, the square root of 13 427 674 is not an integer, and therefore 13 427 674 is not a square number.
The square of a number (here 13 427 674) is the result of the product of this number (13 427 674) by itself (i.e., 13 427 674 × 13 427 674); the square of 13 427 674 is sometimes called "raising 13 427 674 to the power 2", or "13 427 674 squared".
The square of 13 427 674 is 180 302 429 050 276 because 13 427 674 × 13 427 674 = 13 427 6742 = 180 302 429 050 276.
As a consequence, 13 427 674 is the square root of 180 302 429 050 276.
13 427 674 is a number with 8 digits.
The multiples of 13 427 674 are all integers evenly divisible by 13 427 674, that is all numbers such that the remainder of the division by 13 427 674 is zero. There are infinitely many multiples of 13 427 674. The smallest multiples of 13 427 674 are: