It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 442 139 016 is not a prime number.
For example, 442 139 016 can be divided by 2: 442 139 016 / 2 = 221 069 508.
For 442 139 016 to be a prime number, it would have been required that 442 139 016 has only two divisors, i.e., itself and 1.
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442 139 016 is an even number, because it is evenly divisible by 2: 442 139 016 / 2 = 221 069 508.
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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 442 139 016 is about 21 027.102.
Thus, the square root of 442 139 016 is not an integer, and therefore 442 139 016 is not a square number.
The square of a number (here 442 139 016) is the result of the product of this number (442 139 016) by itself (i.e., 442 139 016 × 442 139 016); the square of 442 139 016 is sometimes called "raising 442 139 016 to the power 2", or "442 139 016 squared".
The square of 442 139 016 is 195 486 909 469 448 256 because 442 139 016 × 442 139 016 = 442 139 0162 = 195 486 909 469 448 256.
As a consequence, 442 139 016 is the square root of 195 486 909 469 448 256.
442 139 016 is a number with 9 digits.
The multiples of 442 139 016 are all integers evenly divisible by 442 139 016, that is all numbers such that the remainder of the division by 442 139 016 is zero. There are infinitely many multiples of 442 139 016. The smallest multiples of 442 139 016 are: