It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 491 616 006 is not a prime number.
For example, 491 616 006 can be divided by 2: 491 616 006 / 2 = 245 808 003.
For 491 616 006 to be a prime number, it would have been required that 491 616 006 has only two divisors, i.e., itself and 1.
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491 616 006 is an even number, because it is evenly divisible by 2: 491 616 006 / 2 = 245 808 003.
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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 491 616 006 is about 22 172.415.
Thus, the square root of 491 616 006 is not an integer, and therefore 491 616 006 is not a square number.
The square of a number (here 491 616 006) is the result of the product of this number (491 616 006) by itself (i.e., 491 616 006 × 491 616 006); the square of 491 616 006 is sometimes called "raising 491 616 006 to the power 2", or "491 616 006 squared".
The square of 491 616 006 is 241 686 297 355 392 032 because 491 616 006 × 491 616 006 = 491 616 0062 = 241 686 297 355 392 032.
As a consequence, 491 616 006 is the square root of 241 686 297 355 392 032.
491 616 006 is a number with 9 digits.
The multiples of 491 616 006 are all integers evenly divisible by 491 616 006, that is all numbers such that the remainder of the division by 491 616 006 is zero. There are infinitely many multiples of 491 616 006. The smallest multiples of 491 616 006 are: