It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 131 121 is not a prime number.
For example, 131 121 can be divided by 3: 131 121 / 3 = 43 707.
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For 131 121 to be a prime number, it would have been required that 131 121 has only two divisors, i.e., itself and 1.
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131 121 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 131 121 is about 362.106.
Thus, the square root of 131 121 is not an integer, and therefore 131 121 is not a square number.
The square of a number (here 131 121) is the result of the product of this number (131 121) by itself (i.e., 131 121 × 131 121); the square of 131 121 is sometimes called "raising 131 121 to the power 2", or "131 121 squared".
The square of 131 121 is 17 192 716 641 because 131 121 × 131 121 = 131 1212 = 17 192 716 641.
As a consequence, 131 121 is the square root of 17 192 716 641.
The multiples of 131 121 are all integers evenly divisible by 131 121, that is all numbers such that the remainder of the division by 131 121 is zero. There are infinitely many multiples of 131 121. The smallest multiples of 131 121 are: