It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 491 415 004 is not a prime number.
For example, 491 415 004 can be divided by 2: 491 415 004 / 2 = 245 707 502.
For 491 415 004 to be a prime number, it would have been required that 491 415 004 has only two divisors, i.e., itself and 1.
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491 415 004 is an even number, because it is evenly divisible by 2: 491 415 004 / 2 = 245 707 502.
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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 491 415 004 is about 22 167.882.
Thus, the square root of 491 415 004 is not an integer, and therefore 491 415 004 is not a square number.
The square of a number (here 491 415 004) is the result of the product of this number (491 415 004) by itself (i.e., 491 415 004 × 491 415 004); the square of 491 415 004 is sometimes called "raising 491 415 004 to the power 2", or "491 415 004 squared".
The square of 491 415 004 is 241 488 706 156 320 000 because 491 415 004 × 491 415 004 = 491 415 0042 = 241 488 706 156 320 000.
As a consequence, 491 415 004 is the square root of 241 488 706 156 320 000.
491 415 004 is a number with 9 digits.
The multiples of 491 415 004 are all integers evenly divisible by 491 415 004, that is all numbers such that the remainder of the division by 491 415 004 is zero. There are infinitely many multiples of 491 415 004. The smallest multiples of 491 415 004 are: