It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 60 402 is not a prime number.
For example, 60 402 can be divided by 2: 60 402 / 2 = 30 201.
For 60 402 to be a prime number, it would have been required that 60 402 has only two divisors, i.e., itself and 1.
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60 402 is an even number, because it is evenly divisible by 2: 60 402 / 2 = 30 201.
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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 60 402 is about 245.768.
Thus, the square root of 60 402 is not an integer, and therefore 60 402 is not a square number.
The square of a number (here 60 402) is the result of the product of this number (60 402) by itself (i.e., 60 402 × 60 402); the square of 60 402 is sometimes called "raising 60 402 to the power 2", or "60 402 squared".
The square of 60 402 is 3 648 401 604 because 60 402 × 60 402 = 60 4022 = 3 648 401 604.
As a consequence, 60 402 is the square root of 3 648 401 604.
The multiples of 60 402 are all integers evenly divisible by 60 402, that is all numbers such that the remainder of the division by 60 402 is zero. There are infinitely many multiples of 60 402. The smallest multiples of 60 402 are: