It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 721 079 is not a prime number.
For example, 120 721 079 can be divided by 19: 120 721 079 / 19 = 6 353 741.
For 120 721 079 to be a prime number, it would have been required that 120 721 079 has only two divisors, i.e., itself and 1.
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120 721 079 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 120 721 079 is about 10 987.314.
Thus, the square root of 120 721 079 is not an integer, and therefore 120 721 079 is not a square number.
The square of a number (here 120 721 079) is the result of the product of this number (120 721 079) by itself (i.e., 120 721 079 × 120 721 079); the square of 120 721 079 is sometimes called "raising 120 721 079 to the power 2", or "120 721 079 squared".
The square of 120 721 079 is 14 573 578 914 924 240 because 120 721 079 × 120 721 079 = 120 721 0792 = 14 573 578 914 924 240.
As a consequence, 120 721 079 is the square root of 14 573 578 914 924 240.
120 721 079 is a number with 9 digits.
The multiples of 120 721 079 are all integers evenly divisible by 120 721 079, that is all numbers such that the remainder of the division by 120 721 079 is zero. There are infinitely many multiples of 120 721 079. The smallest multiples of 120 721 079 are: