It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 878 328 674 is not a prime number.
For example, 878 328 674 can be divided by 2: 878 328 674 / 2 = 439 164 337.
For 878 328 674 to be a prime number, it would have been required that 878 328 674 has only two divisors, i.e., itself and 1.
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878 328 674 is an even number, because it is evenly divisible by 2: 878 328 674 / 2 = 439 164 337.
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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 878 328 674 is about 29 636.610.
Thus, the square root of 878 328 674 is not an integer, and therefore 878 328 674 is not a square number.
The square of a number (here 878 328 674) is the result of the product of this number (878 328 674) by itself (i.e., 878 328 674 × 878 328 674); the square of 878 328 674 is sometimes called "raising 878 328 674 to the power 2", or "878 328 674 squared".
The square of 878 328 674 is 771 461 259 570 598 272 because 878 328 674 × 878 328 674 = 878 328 6742 = 771 461 259 570 598 272.
As a consequence, 878 328 674 is the square root of 771 461 259 570 598 272.
878 328 674 is a number with 9 digits.
The multiples of 878 328 674 are all integers evenly divisible by 878 328 674, that is all numbers such that the remainder of the division by 878 328 674 is zero. There are infinitely many multiples of 878 328 674. The smallest multiples of 878 328 674 are: