It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 988 788 026 is not a prime number.
For example, 988 788 026 can be divided by 2: 988 788 026 / 2 = 494 394 013.
For 988 788 026 to be a prime number, it would have been required that 988 788 026 has only two divisors, i.e., itself and 1.
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988 788 026 is an even number, because it is evenly divisible by 2: 988 788 026 / 2 = 494 394 013.
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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 988 788 026 is about 31 445.000.
Thus, the square root of 988 788 026 is not an integer, and therefore 988 788 026 is not a square number.
The square of a number (here 988 788 026) is the result of the product of this number (988 788 026) by itself (i.e., 988 788 026 × 988 788 026); the square of 988 788 026 is sometimes called "raising 988 788 026 to the power 2", or "988 788 026 squared".
The square of 988 788 026 is 977 701 760 360 976 640 because 988 788 026 × 988 788 026 = 988 788 0262 = 977 701 760 360 976 640.
As a consequence, 988 788 026 is the square root of 977 701 760 360 976 640.
988 788 026 is a number with 9 digits.
The multiples of 988 788 026 are all integers evenly divisible by 988 788 026, that is all numbers such that the remainder of the division by 988 788 026 is zero. There are infinitely many multiples of 988 788 026. The smallest multiples of 988 788 026 are: