It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 7 994 802 is not a prime number.
For example, 7 994 802 can be divided by 2: 7 994 802 / 2 = 3 997 401.
For 7 994 802 to be a prime number, it would have been required that 7 994 802 has only two divisors, i.e., itself and 1.
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7 994 802 is an even number, because it is evenly divisible by 2: 7 994 802 / 2 = 3 997 401.
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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 7 994 802 is about 2 827.508.
Thus, the square root of 7 994 802 is not an integer, and therefore 7 994 802 is not a square number.
The square of a number (here 7 994 802) is the result of the product of this number (7 994 802) by itself (i.e., 7 994 802 × 7 994 802); the square of 7 994 802 is sometimes called "raising 7 994 802 to the power 2", or "7 994 802 squared".
The square of 7 994 802 is 63 916 859 019 204 because 7 994 802 × 7 994 802 = 7 994 8022 = 63 916 859 019 204.
As a consequence, 7 994 802 is the square root of 63 916 859 019 204.
The multiples of 7 994 802 are all integers evenly divisible by 7 994 802, that is all numbers such that the remainder of the division by 7 994 802 is zero. There are infinitely many multiples of 7 994 802. The smallest multiples of 7 994 802 are: