Is 35005921 a prime number?
It is possible to find out using mathematical methods whether a given integer is a prime number or not.
Yes, 35 005 921 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 35 005 921, the only two divisors are 1 and 35 005 921. Therefore 35 005 921 is a prime number.
As a consequence, 35 005 921 is only a multiple of 1 and 35 005 921.
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Since 35005921 is a prime number, 35005921 is also a deficient number, that is to say 35005921 is a natural integer that is strictly larger than the sum of its proper divisors, i.e., the divisors of 35005921 without 35005921 itself (that is 1, by definition!).