It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 124 988 242 is not a prime number.
For example, 124 988 242 can be divided by 2: 124 988 242 / 2 = 62 494 121.
For 124 988 242 to be a prime number, it would have been required that 124 988 242 has only two divisors, i.e., itself and 1.
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124 988 242 is an even number, because it is evenly divisible by 2: 124 988 242 / 2 = 62 494 121.
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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 124 988 242 is about 11 179.814.
Thus, the square root of 124 988 242 is not an integer, and therefore 124 988 242 is not a square number.
The square of a number (here 124 988 242) is the result of the product of this number (124 988 242) by itself (i.e., 124 988 242 × 124 988 242); the square of 124 988 242 is sometimes called "raising 124 988 242 to the power 2", or "124 988 242 squared".
The square of 124 988 242 is 15 622 060 638 250 564 because 124 988 242 × 124 988 242 = 124 988 2422 = 15 622 060 638 250 564.
As a consequence, 124 988 242 is the square root of 15 622 060 638 250 564.
124 988 242 is a number with 9 digits.
The multiples of 124 988 242 are all integers evenly divisible by 124 988 242, that is all numbers such that the remainder of the division by 124 988 242 is zero. There are infinitely many multiples of 124 988 242. The smallest multiples of 124 988 242 are: