It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 135 001 is not a prime number.
For example, 135 001 can be divided by 127: 135 001 / 127 = 1 063.
For 135 001 to be a prime number, it would have been required that 135 001 has only two divisors, i.e., itself and 1.
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135 001 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 135 001 is about 367.425.
Thus, the square root of 135 001 is not an integer, and therefore 135 001 is not a square number.
The square of a number (here 135 001) is the result of the product of this number (135 001) by itself (i.e., 135 001 × 135 001); the square of 135 001 is sometimes called "raising 135 001 to the power 2", or "135 001 squared".
The square of 135 001 is 18 225 270 001 because 135 001 × 135 001 = 135 0012 = 18 225 270 001.
As a consequence, 135 001 is the square root of 18 225 270 001.
The multiples of 135 001 are all integers evenly divisible by 135 001, that is all numbers such that the remainder of the division by 135 001 is zero. There are infinitely many multiples of 135 001. The smallest multiples of 135 001 are: