It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 137 694 is not a prime number.
For example, 137 694 can be divided by 2: 137 694 / 2 = 68 847.
For 137 694 to be a prime number, it would have been required that 137 694 has only two divisors, i.e., itself and 1.
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137 694 is an even number, because it is evenly divisible by 2: 137 694 / 2 = 68 847.
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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 137 694 is about 371.071.
Thus, the square root of 137 694 is not an integer, and therefore 137 694 is not a square number.
The square of a number (here 137 694) is the result of the product of this number (137 694) by itself (i.e., 137 694 × 137 694); the square of 137 694 is sometimes called "raising 137 694 to the power 2", or "137 694 squared".
The square of 137 694 is 18 959 637 636 because 137 694 × 137 694 = 137 6942 = 18 959 637 636.
As a consequence, 137 694 is the square root of 18 959 637 636.
The multiples of 137 694 are all integers evenly divisible by 137 694, that is all numbers such that the remainder of the division by 137 694 is zero. There are infinitely many multiples of 137 694. The smallest multiples of 137 694 are: