It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 488 189 021 is not a prime number.
For example, 488 189 021 can be divided by 19: 488 189 021 / 19 = 25 694 159.
For 488 189 021 to be a prime number, it would have been required that 488 189 021 has only two divisors, i.e., itself and 1.
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488 189 021 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 488 189 021 is about 22 095.000.
Thus, the square root of 488 189 021 is not an integer, and therefore 488 189 021 is not a square number.
The square of a number (here 488 189 021) is the result of the product of this number (488 189 021) by itself (i.e., 488 189 021 × 488 189 021); the square of 488 189 021 is sometimes called "raising 488 189 021 to the power 2", or "488 189 021 squared".
The square of 488 189 021 is 238 328 520 224 938 432 because 488 189 021 × 488 189 021 = 488 189 0212 = 238 328 520 224 938 432.
As a consequence, 488 189 021 is the square root of 238 328 520 224 938 432.
488 189 021 is a number with 9 digits.
The multiples of 488 189 021 are all integers evenly divisible by 488 189 021, that is all numbers such that the remainder of the division by 488 189 021 is zero. There are infinitely many multiples of 488 189 021. The smallest multiples of 488 189 021 are: