It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 113 431 is not a prime number.
For example, 113 431 can be divided by 67: 113 431 / 67 = 1 693.
For 113 431 to be a prime number, it would have been required that 113 431 has only two divisors, i.e., itself and 1.
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113 431 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 113 431 is about 336.795.
Thus, the square root of 113 431 is not an integer, and therefore 113 431 is not a square number.
The square of a number (here 113 431) is the result of the product of this number (113 431) by itself (i.e., 113 431 × 113 431); the square of 113 431 is sometimes called "raising 113 431 to the power 2", or "113 431 squared".
The square of 113 431 is 12 866 591 761 because 113 431 × 113 431 = 113 4312 = 12 866 591 761.
As a consequence, 113 431 is the square root of 12 866 591 761.
The multiples of 113 431 are all integers evenly divisible by 113 431, that is all numbers such that the remainder of the division by 113 431 is zero. There are infinitely many multiples of 113 431. The smallest multiples of 113 431 are: