It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 138 980 508 is not a prime number.
For example, 138 980 508 can be divided by 2: 138 980 508 / 2 = 69 490 254.
For 138 980 508 to be a prime number, it would have been required that 138 980 508 has only two divisors, i.e., itself and 1.
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138 980 508 is an even number, because it is evenly divisible by 2: 138 980 508 / 2 = 69 490 254.
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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 138 980 508 is about 11 788.999.
Thus, the square root of 138 980 508 is not an integer, and therefore 138 980 508 is not a square number.
The square of a number (here 138 980 508) is the result of the product of this number (138 980 508) by itself (i.e., 138 980 508 × 138 980 508); the square of 138 980 508 is sometimes called "raising 138 980 508 to the power 2", or "138 980 508 squared".
The square of 138 980 508 is 19 315 581 603 938 064 because 138 980 508 × 138 980 508 = 138 980 5082 = 19 315 581 603 938 064.
As a consequence, 138 980 508 is the square root of 19 315 581 603 938 064.
138 980 508 is a number with 9 digits.
The multiples of 138 980 508 are all integers evenly divisible by 138 980 508, that is all numbers such that the remainder of the division by 138 980 508 is zero. There are infinitely many multiples of 138 980 508. The smallest multiples of 138 980 508 are: