It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 42 250 802 is not a prime number.
For example, 42 250 802 can be divided by 2: 42 250 802 / 2 = 21 125 401.
For 42 250 802 to be a prime number, it would have been required that 42 250 802 has only two divisors, i.e., itself and 1.
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42 250 802 is an even number, because it is evenly divisible by 2: 42 250 802 / 2 = 21 125 401.
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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 42 250 802 is about 6 500.062.
Thus, the square root of 42 250 802 is not an integer, and therefore 42 250 802 is not a square number.
The square of a number (here 42 250 802) is the result of the product of this number (42 250 802) by itself (i.e., 42 250 802 × 42 250 802); the square of 42 250 802 is sometimes called "raising 42 250 802 to the power 2", or "42 250 802 squared".
The square of 42 250 802 is 1 785 130 269 643 204 because 42 250 802 × 42 250 802 = 42 250 8022 = 1 785 130 269 643 204.
As a consequence, 42 250 802 is the square root of 1 785 130 269 643 204.
42 250 802 is a number with 8 digits.
The multiples of 42 250 802 are all integers evenly divisible by 42 250 802, that is all numbers such that the remainder of the division by 42 250 802 is zero. There are infinitely many multiples of 42 250 802. The smallest multiples of 42 250 802 are: