It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 488 368 491 is not a prime number.
For example, 488 368 491 can be divided by 3: 488 368 491 / 3 = 162 789 497.
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For 488 368 491 to be a prime number, it would have been required that 488 368 491 has only two divisors, i.e., itself and 1.
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488 368 491 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 488 368 491 is about 22 099.061.
Thus, the square root of 488 368 491 is not an integer, and therefore 488 368 491 is not a square number.
The square of a number (here 488 368 491) is the result of the product of this number (488 368 491) by itself (i.e., 488 368 491 × 488 368 491); the square of 488 368 491 is sometimes called "raising 488 368 491 to the power 2", or "488 368 491 squared".
The square of 488 368 491 is 238 503 783 001 617 088 because 488 368 491 × 488 368 491 = 488 368 4912 = 238 503 783 001 617 088.
As a consequence, 488 368 491 is the square root of 238 503 783 001 617 088.
488 368 491 is a number with 9 digits.
The multiples of 488 368 491 are all integers evenly divisible by 488 368 491, that is all numbers such that the remainder of the division by 488 368 491 is zero. There are infinitely many multiples of 488 368 491. The smallest multiples of 488 368 491 are: