It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 300 040 402 is not a prime number.
For example, 300 040 402 can be divided by 2: 300 040 402 / 2 = 150 020 201.
For 300 040 402 to be a prime number, it would have been required that 300 040 402 has only two divisors, i.e., itself and 1.
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300 040 402 is an even number, because it is evenly divisible by 2: 300 040 402 / 2 = 150 020 201.
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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 300 040 402 is about 17 321.674.
Thus, the square root of 300 040 402 is not an integer, and therefore 300 040 402 is not a square number.
The square of a number (here 300 040 402) is the result of the product of this number (300 040 402) by itself (i.e., 300 040 402 × 300 040 402); the square of 300 040 402 is sometimes called "raising 300 040 402 to the power 2", or "300 040 402 squared".
The square of 300 040 402 is 90 024 242 832 321 600 because 300 040 402 × 300 040 402 = 300 040 4022 = 90 024 242 832 321 600.
As a consequence, 300 040 402 is the square root of 90 024 242 832 321 600.
300 040 402 is a number with 9 digits.
The multiples of 300 040 402 are all integers evenly divisible by 300 040 402, that is all numbers such that the remainder of the division by 300 040 402 is zero. There are infinitely many multiples of 300 040 402. The smallest multiples of 300 040 402 are: