It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 42 671 416 is not a prime number.
For example, 42 671 416 can be divided by 2: 42 671 416 / 2 = 21 335 708.
For 42 671 416 to be a prime number, it would have been required that 42 671 416 has only two divisors, i.e., itself and 1.
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42 671 416 is an even number, because it is evenly divisible by 2: 42 671 416 / 2 = 21 335 708.
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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 42 671 416 is about 6 532.336.
Thus, the square root of 42 671 416 is not an integer, and therefore 42 671 416 is not a square number.
The square of a number (here 42 671 416) is the result of the product of this number (42 671 416) by itself (i.e., 42 671 416 × 42 671 416); the square of 42 671 416 is sometimes called "raising 42 671 416 to the power 2", or "42 671 416 squared".
The square of 42 671 416 is 1 820 849 743 445 056 because 42 671 416 × 42 671 416 = 42 671 4162 = 1 820 849 743 445 056.
As a consequence, 42 671 416 is the square root of 1 820 849 743 445 056.
42 671 416 is a number with 8 digits.
The multiples of 42 671 416 are all integers evenly divisible by 42 671 416, that is all numbers such that the remainder of the division by 42 671 416 is zero. There are infinitely many multiples of 42 671 416. The smallest multiples of 42 671 416 are: