It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 335 431 is not a prime number.
For example, 335 431 can be divided by 509: 335 431 / 509 = 659.
For 335 431 to be a prime number, it would have been required that 335 431 has only two divisors, i.e., itself and 1.
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335 431 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 335 431 is about 579.164.
Thus, the square root of 335 431 is not an integer, and therefore 335 431 is not a square number.
The square of a number (here 335 431) is the result of the product of this number (335 431) by itself (i.e., 335 431 × 335 431); the square of 335 431 is sometimes called "raising 335 431 to the power 2", or "335 431 squared".
The square of 335 431 is 112 513 955 761 because 335 431 × 335 431 = 335 4312 = 112 513 955 761.
As a consequence, 335 431 is the square root of 112 513 955 761.
The multiples of 335 431 are all integers evenly divisible by 335 431, that is all numbers such that the remainder of the division by 335 431 is zero. There are infinitely many multiples of 335 431. The smallest multiples of 335 431 are: