It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 164 420 974 is not a prime number.
For example, 164 420 974 can be divided by 2: 164 420 974 / 2 = 82 210 487.
For 164 420 974 to be a prime number, it would have been required that 164 420 974 has only two divisors, i.e., itself and 1.
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164 420 974 is an even number, because it is evenly divisible by 2: 164 420 974 / 2 = 82 210 487.
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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 164 420 974 is about 12 822.674.
Thus, the square root of 164 420 974 is not an integer, and therefore 164 420 974 is not a square number.
The square of a number (here 164 420 974) is the result of the product of this number (164 420 974) by itself (i.e., 164 420 974 × 164 420 974); the square of 164 420 974 is sometimes called "raising 164 420 974 to the power 2", or "164 420 974 squared".
The square of 164 420 974 is 27 034 256 691 108 676 because 164 420 974 × 164 420 974 = 164 420 9742 = 27 034 256 691 108 676.
As a consequence, 164 420 974 is the square root of 27 034 256 691 108 676.
164 420 974 is a number with 9 digits.
The multiples of 164 420 974 are all integers evenly divisible by 164 420 974, that is all numbers such that the remainder of the division by 164 420 974 is zero. There are infinitely many multiples of 164 420 974. The smallest multiples of 164 420 974 are: