It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 496 138 is not a prime number.
For example, 496 138 can be divided by 2: 496 138 / 2 = 248 069.
For 496 138 to be a prime number, it would have been required that 496 138 has only two divisors, i.e., itself and 1.
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496 138 is an even number, because it is evenly divisible by 2: 496 138 / 2 = 248 069.
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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 496 138 is about 704.371.
Thus, the square root of 496 138 is not an integer, and therefore 496 138 is not a square number.
The square of a number (here 496 138) is the result of the product of this number (496 138) by itself (i.e., 496 138 × 496 138); the square of 496 138 is sometimes called "raising 496 138 to the power 2", or "496 138 squared".
The square of 496 138 is 246 152 915 044 because 496 138 × 496 138 = 496 1382 = 246 152 915 044.
As a consequence, 496 138 is the square root of 246 152 915 044.
The multiples of 496 138 are all integers evenly divisible by 496 138, that is all numbers such that the remainder of the division by 496 138 is zero. There are infinitely many multiples of 496 138. The smallest multiples of 496 138 are: