Is 842682839 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 842 682 839 is a prime number.
Indeed, the definition of a prime numbers is to have exactly two distinct positive divisors, 1 and itself. A number is a divisor of another number when the remainder of Euclid’s division of the second one by the first one is zero. Concerning the number 842 682 839, the only two divisors are 1 and 842 682 839. Therefore 842 682 839 is a prime number.
As a consequence, 842 682 839 is only a multiple of 1 and 842 682 839.
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Since 842682839 is a prime number, 842682839 is also a deficient number, that is to say 842682839 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 842682839 without 842682839 itself (that is 1, by definition!).