It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 75 742 474 is not a prime number.
For example, 75 742 474 can be divided by 2: 75 742 474 / 2 = 37 871 237.
For 75 742 474 to be a prime number, it would have been required that 75 742 474 has only two divisors, i.e., itself and 1.
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75 742 474 is an even number, because it is evenly divisible by 2: 75 742 474 / 2 = 37 871 237.
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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 75 742 474 is about 8 703.015.
Thus, the square root of 75 742 474 is not an integer, and therefore 75 742 474 is not a square number.
The square of a number (here 75 742 474) is the result of the product of this number (75 742 474) by itself (i.e., 75 742 474 × 75 742 474); the square of 75 742 474 is sometimes called "raising 75 742 474 to the power 2", or "75 742 474 squared".
The square of 75 742 474 is 5 736 922 367 640 676 because 75 742 474 × 75 742 474 = 75 742 4742 = 5 736 922 367 640 676.
As a consequence, 75 742 474 is the square root of 5 736 922 367 640 676.
75 742 474 is a number with 8 digits.
The multiples of 75 742 474 are all integers evenly divisible by 75 742 474, that is all numbers such that the remainder of the division by 75 742 474 is zero. There are infinitely many multiples of 75 742 474. The smallest multiples of 75 742 474 are: