It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 121 501 998 is not a prime number.
For example, 121 501 998 can be divided by 2: 121 501 998 / 2 = 60 750 999.
For 121 501 998 to be a prime number, it would have been required that 121 501 998 has only two divisors, i.e., itself and 1.
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121 501 998 is an even number, because it is evenly divisible by 2: 121 501 998 / 2 = 60 750 999.
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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 121 501 998 is about 11 022.794.
Thus, the square root of 121 501 998 is not an integer, and therefore 121 501 998 is not a square number.
The square of a number (here 121 501 998) is the result of the product of this number (121 501 998) by itself (i.e., 121 501 998 × 121 501 998); the square of 121 501 998 is sometimes called "raising 121 501 998 to the power 2", or "121 501 998 squared".
The square of 121 501 998 is 14 762 735 517 992 004 because 121 501 998 × 121 501 998 = 121 501 9982 = 14 762 735 517 992 004.
As a consequence, 121 501 998 is the square root of 14 762 735 517 992 004.
121 501 998 is a number with 9 digits.
The multiples of 121 501 998 are all integers evenly divisible by 121 501 998, that is all numbers such that the remainder of the division by 121 501 998 is zero. There are infinitely many multiples of 121 501 998. The smallest multiples of 121 501 998 are: