It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 988 577 376 is not a prime number.
For example, 988 577 376 can be divided by 2: 988 577 376 / 2 = 494 288 688.
For 988 577 376 to be a prime number, it would have been required that 988 577 376 has only two divisors, i.e., itself and 1.
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988 577 376 is an even number, because it is evenly divisible by 2: 988 577 376 / 2 = 494 288 688.
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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 988 577 376 is about 31 441.650.
Thus, the square root of 988 577 376 is not an integer, and therefore 988 577 376 is not a square number.
The square of a number (here 988 577 376) is the result of the product of this number (988 577 376) by itself (i.e., 988 577 376 × 988 577 376); the square of 988 577 376 is sometimes called "raising 988 577 376 to the power 2", or "988 577 376 squared".
The square of 988 577 376 is 977 285 228 339 045 376 because 988 577 376 × 988 577 376 = 988 577 3762 = 977 285 228 339 045 376.
As a consequence, 988 577 376 is the square root of 977 285 228 339 045 376.
988 577 376 is a number with 9 digits.
The multiples of 988 577 376 are all integers evenly divisible by 988 577 376, that is all numbers such that the remainder of the division by 988 577 376 is zero. There are infinitely many multiples of 988 577 376. The smallest multiples of 988 577 376 are: