It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 42 198 008 is not a prime number.
For example, 42 198 008 can be divided by 2: 42 198 008 / 2 = 21 099 004.
For 42 198 008 to be a prime number, it would have been required that 42 198 008 has only two divisors, i.e., itself and 1.
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42 198 008 is an even number, because it is evenly divisible by 2: 42 198 008 / 2 = 21 099 004.
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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 42 198 008 is about 6 495.999.
Thus, the square root of 42 198 008 is not an integer, and therefore 42 198 008 is not a square number.
The square of a number (here 42 198 008) is the result of the product of this number (42 198 008) by itself (i.e., 42 198 008 × 42 198 008); the square of 42 198 008 is sometimes called "raising 42 198 008 to the power 2", or "42 198 008 squared".
The square of 42 198 008 is 1 780 671 879 168 064 because 42 198 008 × 42 198 008 = 42 198 0082 = 1 780 671 879 168 064.
As a consequence, 42 198 008 is the square root of 1 780 671 879 168 064.
42 198 008 is a number with 8 digits.
The multiples of 42 198 008 are all integers evenly divisible by 42 198 008, that is all numbers such that the remainder of the division by 42 198 008 is zero. There are infinitely many multiples of 42 198 008. The smallest multiples of 42 198 008 are: