It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 488 490 639 is not a prime number.
For example, 488 490 639 can be divided by 3: 488 490 639 / 3 = 162 830 213.
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For 488 490 639 to be a prime number, it would have been required that 488 490 639 has only two divisors, i.e., itself and 1.
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488 490 639 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 488 490 639 is about 22 101.824.
Thus, the square root of 488 490 639 is not an integer, and therefore 488 490 639 is not a square number.
The square of a number (here 488 490 639) is the result of the product of this number (488 490 639) by itself (i.e., 488 490 639 × 488 490 639); the square of 488 490 639 is sometimes called "raising 488 490 639 to the power 2", or "488 490 639 squared".
The square of 488 490 639 is 238 623 104 390 628 320 because 488 490 639 × 488 490 639 = 488 490 6392 = 238 623 104 390 628 320.
As a consequence, 488 490 639 is the square root of 238 623 104 390 628 320.
488 490 639 is a number with 9 digits.
The multiples of 488 490 639 are all integers evenly divisible by 488 490 639, that is all numbers such that the remainder of the division by 488 490 639 is zero. There are infinitely many multiples of 488 490 639. The smallest multiples of 488 490 639 are: