It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 442 138 802 is not a prime number.
For example, 442 138 802 can be divided by 2: 442 138 802 / 2 = 221 069 401.
For 442 138 802 to be a prime number, it would have been required that 442 138 802 has only two divisors, i.e., itself and 1.
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442 138 802 is an even number, because it is evenly divisible by 2: 442 138 802 / 2 = 221 069 401.
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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 442 138 802 is about 21 027.097.
Thus, the square root of 442 138 802 is not an integer, and therefore 442 138 802 is not a square number.
The square of a number (here 442 138 802) is the result of the product of this number (442 138 802) by itself (i.e., 442 138 802 × 442 138 802); the square of 442 138 802 is sometimes called "raising 442 138 802 to the power 2", or "442 138 802 squared".
The square of 442 138 802 is 195 486 720 233 995 200 because 442 138 802 × 442 138 802 = 442 138 8022 = 195 486 720 233 995 200.
As a consequence, 442 138 802 is the square root of 195 486 720 233 995 200.
442 138 802 is a number with 9 digits.
The multiples of 442 138 802 are all integers evenly divisible by 442 138 802, that is all numbers such that the remainder of the division by 442 138 802 is zero. There are infinitely many multiples of 442 138 802. The smallest multiples of 442 138 802 are: