It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 343 is not a prime number.
For example, 120 343 can be divided by 17: 120 343 / 17 = 7 079.
For 120 343 to be a prime number, it would have been required that 120 343 has only two divisors, i.e., itself and 1.
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120 343 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 120 343 is about 346.905.
Thus, the square root of 120 343 is not an integer, and therefore 120 343 is not a square number.
The square of a number (here 120 343) is the result of the product of this number (120 343) by itself (i.e., 120 343 × 120 343); the square of 120 343 is sometimes called "raising 120 343 to the power 2", or "120 343 squared".
The square of 120 343 is 14 482 437 649 because 120 343 × 120 343 = 120 3432 = 14 482 437 649.
As a consequence, 120 343 is the square root of 14 482 437 649.
The multiples of 120 343 are all integers evenly divisible by 120 343, that is all numbers such that the remainder of the division by 120 343 is zero. There are infinitely many multiples of 120 343. The smallest multiples of 120 343 are: