It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 791 671 is not a prime number.
For example, 791 671 can be divided by 29: 791 671 / 29 = 27 299.
For 791 671 to be a prime number, it would have been required that 791 671 has only two divisors, i.e., itself and 1.
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791 671 is an odd number, because it is not evenly divisible by 2.
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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 791 671 is about 889.759.
Thus, the square root of 791 671 is not an integer, and therefore 791 671 is not a square number.
The square of a number (here 791 671) is the result of the product of this number (791 671) by itself (i.e., 791 671 × 791 671); the square of 791 671 is sometimes called "raising 791 671 to the power 2", or "791 671 squared".
The square of 791 671 is 626 742 972 241 because 791 671 × 791 671 = 791 6712 = 626 742 972 241.
As a consequence, 791 671 is the square root of 626 742 972 241.
The multiples of 791 671 are all integers evenly divisible by 791 671, that is all numbers such that the remainder of the division by 791 671 is zero. There are infinitely many multiples of 791 671. The smallest multiples of 791 671 are: