It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 122 499 998 is not a prime number.
For example, 122 499 998 can be divided by 2: 122 499 998 / 2 = 61 249 999.
For 122 499 998 to be a prime number, it would have been required that 122 499 998 has only two divisors, i.e., itself and 1.
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122 499 998 is an even number, because it is evenly divisible by 2: 122 499 998 / 2 = 61 249 999.
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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 122 499 998 is about 11 067.972.
Thus, the square root of 122 499 998 is not an integer, and therefore 122 499 998 is not a square number.
The square of a number (here 122 499 998) is the result of the product of this number (122 499 998) by itself (i.e., 122 499 998 × 122 499 998); the square of 122 499 998 is sometimes called "raising 122 499 998 to the power 2", or "122 499 998 squared".
The square of 122 499 998 is 15 006 249 510 000 004 because 122 499 998 × 122 499 998 = 122 499 9982 = 15 006 249 510 000 004.
As a consequence, 122 499 998 is the square root of 15 006 249 510 000 004.
122 499 998 is a number with 9 digits.
The multiples of 122 499 998 are all integers evenly divisible by 122 499 998, that is all numbers such that the remainder of the division by 122 499 998 is zero. There are infinitely many multiples of 122 499 998. The smallest multiples of 122 499 998 are: