It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 977 431 016 is not a prime number.
For example, 977 431 016 can be divided by 2: 977 431 016 / 2 = 488 715 508.
For 977 431 016 to be a prime number, it would have been required that 977 431 016 has only two divisors, i.e., itself and 1.
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977 431 016 is an even number, because it is evenly divisible by 2: 977 431 016 / 2 = 488 715 508.
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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 977 431 016 is about 31 263.893.
Thus, the square root of 977 431 016 is not an integer, and therefore 977 431 016 is not a square number.
The square of a number (here 977 431 016) is the result of the product of this number (977 431 016) by itself (i.e., 977 431 016 × 977 431 016); the square of 977 431 016 is sometimes called "raising 977 431 016 to the power 2", or "977 431 016 squared".
The square of 977 431 016 is 955 371 391 038 792 192 because 977 431 016 × 977 431 016 = 977 431 0162 = 955 371 391 038 792 192.
As a consequence, 977 431 016 is the square root of 955 371 391 038 792 192.
977 431 016 is a number with 9 digits.
The multiples of 977 431 016 are all integers evenly divisible by 977 431 016, that is all numbers such that the remainder of the division by 977 431 016 is zero. There are infinitely many multiples of 977 431 016. The smallest multiples of 977 431 016 are: