It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 131 998 731 is not a prime number.
For example, 131 998 731 can be divided by 3: 131 998 731 / 3 = 43 999 577.
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For 131 998 731 to be a prime number, it would have been required that 131 998 731 has only two divisors, i.e., itself and 1.
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131 998 731 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 131 998 731 is about 11 489.070.
Thus, the square root of 131 998 731 is not an integer, and therefore 131 998 731 is not a square number.
The square of a number (here 131 998 731) is the result of the product of this number (131 998 731) by itself (i.e., 131 998 731 × 131 998 731); the square of 131 998 731 is sometimes called "raising 131 998 731 to the power 2", or "131 998 731 squared".
The square of 131 998 731 is 17 423 664 985 610 360 because 131 998 731 × 131 998 731 = 131 998 7312 = 17 423 664 985 610 360.
As a consequence, 131 998 731 is the square root of 17 423 664 985 610 360.
131 998 731 is a number with 9 digits.
The multiples of 131 998 731 are all integers evenly divisible by 131 998 731, that is all numbers such that the remainder of the division by 131 998 731 is zero. There are infinitely many multiples of 131 998 731. The smallest multiples of 131 998 731 are: