It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 167 940 978 is not a prime number.
For example, 167 940 978 can be divided by 2: 167 940 978 / 2 = 83 970 489.
For 167 940 978 to be a prime number, it would have been required that 167 940 978 has only two divisors, i.e., itself and 1.
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167 940 978 is an even number, because it is evenly divisible by 2: 167 940 978 / 2 = 83 970 489.
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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 167 940 978 is about 12 959.204.
Thus, the square root of 167 940 978 is not an integer, and therefore 167 940 978 is not a square number.
The square of a number (here 167 940 978) is the result of the product of this number (167 940 978) by itself (i.e., 167 940 978 × 167 940 978); the square of 167 940 978 is sometimes called "raising 167 940 978 to the power 2", or "167 940 978 squared".
The square of 167 940 978 is 28 204 172 091 596 484 because 167 940 978 × 167 940 978 = 167 940 9782 = 28 204 172 091 596 484.
As a consequence, 167 940 978 is the square root of 28 204 172 091 596 484.
167 940 978 is a number with 9 digits.
The multiples of 167 940 978 are all integers evenly divisible by 167 940 978, that is all numbers such that the remainder of the division by 167 940 978 is zero. There are infinitely many multiples of 167 940 978. The smallest multiples of 167 940 978 are: