It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 42 004 102 is not a prime number.
For example, 42 004 102 can be divided by 2: 42 004 102 / 2 = 21 002 051.
For 42 004 102 to be a prime number, it would have been required that 42 004 102 has only two divisors, i.e., itself and 1.
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42 004 102 is an even number, because it is evenly divisible by 2: 42 004 102 / 2 = 21 002 051.
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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 42 004 102 is about 6 481.057.
Thus, the square root of 42 004 102 is not an integer, and therefore 42 004 102 is not a square number.
The square of a number (here 42 004 102) is the result of the product of this number (42 004 102) by itself (i.e., 42 004 102 × 42 004 102); the square of 42 004 102 is sometimes called "raising 42 004 102 to the power 2", or "42 004 102 squared".
The square of 42 004 102 is 1 764 344 584 826 404 because 42 004 102 × 42 004 102 = 42 004 1022 = 1 764 344 584 826 404.
As a consequence, 42 004 102 is the square root of 1 764 344 584 826 404.
42 004 102 is a number with 8 digits.
The multiples of 42 004 102 are all integers evenly divisible by 42 004 102, that is all numbers such that the remainder of the division by 42 004 102 is zero. There are infinitely many multiples of 42 004 102. The smallest multiples of 42 004 102 are: