It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 49 042 009 is not a prime number.
For example, 49 042 009 can be divided by 47: 49 042 009 / 47 = 1 043 447.
For 49 042 009 to be a prime number, it would have been required that 49 042 009 has only two divisors, i.e., itself and 1.
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49 042 009 is an odd number, because it is not evenly divisible by 2.
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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 49 042 009 is 7 003.
Therefore, the square root of 49 042 009 is an integer, and as a consequence 49 042 009 is a perfect square.
As a consequence, 7 003 is the square root of 49 042 009.
The square of a number (here 49 042 009) is the result of the product of this number (49 042 009) by itself (i.e., 49 042 009 × 49 042 009); the square of 49 042 009 is sometimes called "raising 49 042 009 to the power 2", or "49 042 009 squared".
The square of 49 042 009 is 2 405 118 646 756 081 because 49 042 009 × 49 042 009 = 49 042 0092 = 2 405 118 646 756 081.
As a consequence, 49 042 009 is the square root of 2 405 118 646 756 081.
49 042 009 is a number with 8 digits.
The multiples of 49 042 009 are all integers evenly divisible by 49 042 009, that is all numbers such that the remainder of the division by 49 042 009 is zero. There are infinitely many multiples of 49 042 009. The smallest multiples of 49 042 009 are: