It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 42 109 308 is not a prime number.
For example, 42 109 308 can be divided by 2: 42 109 308 / 2 = 21 054 654.
For 42 109 308 to be a prime number, it would have been required that 42 109 308 has only two divisors, i.e., itself and 1.
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42 109 308 is an even number, because it is evenly divisible by 2: 42 109 308 / 2 = 21 054 654.
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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 42 109 308 is about 6 489.169.
Thus, the square root of 42 109 308 is not an integer, and therefore 42 109 308 is not a square number.
The square of a number (here 42 109 308) is the result of the product of this number (42 109 308) by itself (i.e., 42 109 308 × 42 109 308); the square of 42 109 308 is sometimes called "raising 42 109 308 to the power 2", or "42 109 308 squared".
The square of 42 109 308 is 1 773 193 820 238 864 because 42 109 308 × 42 109 308 = 42 109 3082 = 1 773 193 820 238 864.
As a consequence, 42 109 308 is the square root of 1 773 193 820 238 864.
42 109 308 is a number with 8 digits.
The multiples of 42 109 308 are all integers evenly divisible by 42 109 308, that is all numbers such that the remainder of the division by 42 109 308 is zero. There are infinitely many multiples of 42 109 308. The smallest multiples of 42 109 308 are: