It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 159 869 742 is not a prime number.
For example, 159 869 742 can be divided by 2: 159 869 742 / 2 = 79 934 871.
For 159 869 742 to be a prime number, it would have been required that 159 869 742 has only two divisors, i.e., itself and 1.
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159 869 742 is an even number, because it is evenly divisible by 2: 159 869 742 / 2 = 79 934 871.
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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 159 869 742 is about 12 643.961.
Thus, the square root of 159 869 742 is not an integer, and therefore 159 869 742 is not a square number.
The square of a number (here 159 869 742) is the result of the product of this number (159 869 742) by itself (i.e., 159 869 742 × 159 869 742); the square of 159 869 742 is sometimes called "raising 159 869 742 to the power 2", or "159 869 742 squared".
The square of 159 869 742 is 25 558 334 407 146 564 because 159 869 742 × 159 869 742 = 159 869 7422 = 25 558 334 407 146 564.
As a consequence, 159 869 742 is the square root of 25 558 334 407 146 564.
159 869 742 is a number with 9 digits.
The multiples of 159 869 742 are all integers evenly divisible by 159 869 742, that is all numbers such that the remainder of the division by 159 869 742 is zero. There are infinitely many multiples of 159 869 742. The smallest multiples of 159 869 742 are: