It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 42 748 907 is not a prime number.
For example, 42 748 907 can be divided by 31: 42 748 907 / 31 = 1 378 997.
For 42 748 907 to be a prime number, it would have been required that 42 748 907 has only two divisors, i.e., itself and 1.
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42 748 907 is an odd number, because it is not evenly divisible by 2.
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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 42 748 907 is about 6 538.265.
Thus, the square root of 42 748 907 is not an integer, and therefore 42 748 907 is not a square number.
The square of a number (here 42 748 907) is the result of the product of this number (42 748 907) by itself (i.e., 42 748 907 × 42 748 907); the square of 42 748 907 is sometimes called "raising 42 748 907 to the power 2", or "42 748 907 squared".
The square of 42 748 907 is 1 827 469 049 694 649 because 42 748 907 × 42 748 907 = 42 748 9072 = 1 827 469 049 694 649.
As a consequence, 42 748 907 is the square root of 1 827 469 049 694 649.
42 748 907 is a number with 8 digits.
The multiples of 42 748 907 are all integers evenly divisible by 42 748 907, that is all numbers such that the remainder of the division by 42 748 907 is zero. There are infinitely many multiples of 42 748 907. The smallest multiples of 42 748 907 are: