It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 942 402 is not a prime number.
For example, 942 402 can be divided by 2: 942 402 / 2 = 471 201.
For 942 402 to be a prime number, it would have been required that 942 402 has only two divisors, i.e., itself and 1.
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942 402 is an even number, because it is evenly divisible by 2: 942 402 / 2 = 471 201.
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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 942 402 is about 970.774.
Thus, the square root of 942 402 is not an integer, and therefore 942 402 is not a square number.
The square of a number (here 942 402) is the result of the product of this number (942 402) by itself (i.e., 942 402 × 942 402); the square of 942 402 is sometimes called "raising 942 402 to the power 2", or "942 402 squared".
The square of 942 402 is 888 121 529 604 because 942 402 × 942 402 = 942 4022 = 888 121 529 604.
As a consequence, 942 402 is the square root of 888 121 529 604.
The multiples of 942 402 are all integers evenly divisible by 942 402, that is all numbers such that the remainder of the division by 942 402 is zero. There are infinitely many multiples of 942 402. The smallest multiples of 942 402 are: