It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 75 742 472 is not a prime number.
For example, 75 742 472 can be divided by 2: 75 742 472 / 2 = 37 871 236.
For 75 742 472 to be a prime number, it would have been required that 75 742 472 has only two divisors, i.e., itself and 1.
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75 742 472 is an even number, because it is evenly divisible by 2: 75 742 472 / 2 = 37 871 236.
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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 75 742 472 is about 8 703.015.
Thus, the square root of 75 742 472 is not an integer, and therefore 75 742 472 is not a square number.
The square of a number (here 75 742 472) is the result of the product of this number (75 742 472) by itself (i.e., 75 742 472 × 75 742 472); the square of 75 742 472 is sometimes called "raising 75 742 472 to the power 2", or "75 742 472 squared".
The square of 75 742 472 is 5 736 922 064 670 784 because 75 742 472 × 75 742 472 = 75 742 4722 = 5 736 922 064 670 784.
As a consequence, 75 742 472 is the square root of 5 736 922 064 670 784.
75 742 472 is a number with 8 digits.
The multiples of 75 742 472 are all integers evenly divisible by 75 742 472, that is all numbers such that the remainder of the division by 75 742 472 is zero. There are infinitely many multiples of 75 742 472. The smallest multiples of 75 742 472 are: