It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 216 489 is not a prime number.
For example, 120 216 489 can be divided by 3: 120 216 489 / 3 = 40 072 163.
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For 120 216 489 to be a prime number, it would have been required that 120 216 489 has only two divisors, i.e., itself and 1.
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120 216 489 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 120 216 489 is about 10 964.328.
Thus, the square root of 120 216 489 is not an integer, and therefore 120 216 489 is not a square number.
The square of a number (here 120 216 489) is the result of the product of this number (120 216 489) by itself (i.e., 120 216 489 × 120 216 489); the square of 120 216 489 is sometimes called "raising 120 216 489 to the power 2", or "120 216 489 squared".
The square of 120 216 489 is 14 452 004 227 487 120 because 120 216 489 × 120 216 489 = 120 216 4892 = 14 452 004 227 487 120.
As a consequence, 120 216 489 is the square root of 14 452 004 227 487 120.
120 216 489 is a number with 9 digits.
The multiples of 120 216 489 are all integers evenly divisible by 120 216 489, that is all numbers such that the remainder of the division by 120 216 489 is zero. There are infinitely many multiples of 120 216 489. The smallest multiples of 120 216 489 are: