It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 78 977 308 is not a prime number.
For example, 78 977 308 can be divided by 2: 78 977 308 / 2 = 39 488 654.
For 78 977 308 to be a prime number, it would have been required that 78 977 308 has only two divisors, i.e., itself and 1.
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78 977 308 is an even number, because it is evenly divisible by 2: 78 977 308 / 2 = 39 488 654.
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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 78 977 308 is about 8 886.918.
Thus, the square root of 78 977 308 is not an integer, and therefore 78 977 308 is not a square number.
The square of a number (here 78 977 308) is the result of the product of this number (78 977 308) by itself (i.e., 78 977 308 × 78 977 308); the square of 78 977 308 is sometimes called "raising 78 977 308 to the power 2", or "78 977 308 squared".
The square of 78 977 308 is 6 237 415 178 926 864 because 78 977 308 × 78 977 308 = 78 977 3082 = 6 237 415 178 926 864.
As a consequence, 78 977 308 is the square root of 6 237 415 178 926 864.
78 977 308 is a number with 8 digits.
The multiples of 78 977 308 are all integers evenly divisible by 78 977 308, that is all numbers such that the remainder of the division by 78 977 308 is zero. There are infinitely many multiples of 78 977 308. The smallest multiples of 78 977 308 are: