It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 859 is not a prime number.
For example, 120 859 can be divided by 19: 120 859 / 19 = 6 361.
For 120 859 to be a prime number, it would have been required that 120 859 has only two divisors, i.e., itself and 1.
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120 859 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 120 859 is about 347.648.
Thus, the square root of 120 859 is not an integer, and therefore 120 859 is not a square number.
The square of a number (here 120 859) is the result of the product of this number (120 859) by itself (i.e., 120 859 × 120 859); the square of 120 859 is sometimes called "raising 120 859 to the power 2", or "120 859 squared".
The square of 120 859 is 14 606 897 881 because 120 859 × 120 859 = 120 8592 = 14 606 897 881.
As a consequence, 120 859 is the square root of 14 606 897 881.
The multiples of 120 859 are all integers evenly divisible by 120 859, that is all numbers such that the remainder of the division by 120 859 is zero. There are infinitely many multiples of 120 859. The smallest multiples of 120 859 are: