It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 77 420 002 is not a prime number.
For example, 77 420 002 can be divided by 2: 77 420 002 / 2 = 38 710 001.
For 77 420 002 to be a prime number, it would have been required that 77 420 002 has only two divisors, i.e., itself and 1.
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77 420 002 is an even number, because it is evenly divisible by 2: 77 420 002 / 2 = 38 710 001.
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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 77 420 002 is about 8 798.864.
Thus, the square root of 77 420 002 is not an integer, and therefore 77 420 002 is not a square number.
The square of a number (here 77 420 002) is the result of the product of this number (77 420 002) by itself (i.e., 77 420 002 × 77 420 002); the square of 77 420 002 is sometimes called "raising 77 420 002 to the power 2", or "77 420 002 squared".
The square of 77 420 002 is 5 993 856 709 680 004 because 77 420 002 × 77 420 002 = 77 420 0022 = 5 993 856 709 680 004.
As a consequence, 77 420 002 is the square root of 5 993 856 709 680 004.
77 420 002 is a number with 8 digits.
The multiples of 77 420 002 are all integers evenly divisible by 77 420 002, that is all numbers such that the remainder of the division by 77 420 002 is zero. There are infinitely many multiples of 77 420 002. The smallest multiples of 77 420 002 are: