It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 80 772 009 is not a prime number.
For example, 80 772 009 can be divided by 3: 80 772 009 / 3 = 26 924 003.
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For 80 772 009 to be a prime number, it would have been required that 80 772 009 has only two divisors, i.e., itself and 1.
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80 772 009 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 80 772 009 is about 8 987.325.
Thus, the square root of 80 772 009 is not an integer, and therefore 80 772 009 is not a square number.
The square of a number (here 80 772 009) is the result of the product of this number (80 772 009) by itself (i.e., 80 772 009 × 80 772 009); the square of 80 772 009 is sometimes called "raising 80 772 009 to the power 2", or "80 772 009 squared".
The square of 80 772 009 is 6 524 117 437 896 081 because 80 772 009 × 80 772 009 = 80 772 0092 = 6 524 117 437 896 081.
As a consequence, 80 772 009 is the square root of 6 524 117 437 896 081.
80 772 009 is a number with 8 digits.
The multiples of 80 772 009 are all integers evenly divisible by 80 772 009, that is all numbers such that the remainder of the division by 80 772 009 is zero. There are infinitely many multiples of 80 772 009. The smallest multiples of 80 772 009 are: