It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 137 996 842 is not a prime number.
For example, 137 996 842 can be divided by 2: 137 996 842 / 2 = 68 998 421.
For 137 996 842 to be a prime number, it would have been required that 137 996 842 has only two divisors, i.e., itself and 1.
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137 996 842 is an even number, because it is evenly divisible by 2: 137 996 842 / 2 = 68 998 421.
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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 137 996 842 is about 11 747.206.
Thus, the square root of 137 996 842 is not an integer, and therefore 137 996 842 is not a square number.
The square of a number (here 137 996 842) is the result of the product of this number (137 996 842) by itself (i.e., 137 996 842 × 137 996 842); the square of 137 996 842 is sometimes called "raising 137 996 842 to the power 2", or "137 996 842 squared".
The square of 137 996 842 is 19 043 128 401 972 964 because 137 996 842 × 137 996 842 = 137 996 8422 = 19 043 128 401 972 964.
As a consequence, 137 996 842 is the square root of 19 043 128 401 972 964.
137 996 842 is a number with 9 digits.
The multiples of 137 996 842 are all integers evenly divisible by 137 996 842, that is all numbers such that the remainder of the division by 137 996 842 is zero. There are infinitely many multiples of 137 996 842. The smallest multiples of 137 996 842 are: