It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 488 013 261 is not a prime number.
For example, 488 013 261 can be divided by 3: 488 013 261 / 3 = 162 671 087.
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For 488 013 261 to be a prime number, it would have been required that 488 013 261 has only two divisors, i.e., itself and 1.
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488 013 261 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 488 013 261 is about 22 091.022.
Thus, the square root of 488 013 261 is not an integer, and therefore 488 013 261 is not a square number.
The square of a number (here 488 013 261) is the result of the product of this number (488 013 261) by itself (i.e., 488 013 261 × 488 013 261); the square of 488 013 261 is sometimes called "raising 488 013 261 to the power 2", or "488 013 261 squared".
The square of 488 013 261 is 238 156 942 911 854 112 because 488 013 261 × 488 013 261 = 488 013 2612 = 238 156 942 911 854 112.
As a consequence, 488 013 261 is the square root of 238 156 942 911 854 112.
488 013 261 is a number with 9 digits.
The multiples of 488 013 261 are all integers evenly divisible by 488 013 261, that is all numbers such that the remainder of the division by 488 013 261 is zero. There are infinitely many multiples of 488 013 261. The smallest multiples of 488 013 261 are: