It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 136 008 is not a prime number.
For example, 136 008 can be divided by 2: 136 008 / 2 = 68 004.
For 136 008 to be a prime number, it would have been required that 136 008 has only two divisors, i.e., itself and 1.
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136 008 is an even number, because it is evenly divisible by 2: 136 008 / 2 = 68 004.
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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 136 008 is about 368.793.
Thus, the square root of 136 008 is not an integer, and therefore 136 008 is not a square number.
The square of a number (here 136 008) is the result of the product of this number (136 008) by itself (i.e., 136 008 × 136 008); the square of 136 008 is sometimes called "raising 136 008 to the power 2", or "136 008 squared".
The square of 136 008 is 18 498 176 064 because 136 008 × 136 008 = 136 0082 = 18 498 176 064.
As a consequence, 136 008 is the square root of 18 498 176 064.
The multiples of 136 008 are all integers evenly divisible by 136 008, that is all numbers such that the remainder of the division by 136 008 is zero. There are infinitely many multiples of 136 008. The smallest multiples of 136 008 are: