what does prime numbers mean?
607889
can only be divided by 1 and themselves
317639
the largest known prime number till date is (2^30402457)-1\n\nFor detailed reference visit:\n\nhttp://primes.utm.edu/largest.html\n\nand\n\nhttp://primes.utm.edu/lists/top_ten/topten.pdf
246941
5, you are listing the prime numbers
832736
No other two numbers besides ONE and itself can equal to ONE. for example\n\n7 is prime because only\n\n1*7 can equal to 7\n\n1 is prime because only\n\n1*1 can equal to one
898910
If you mean a number with three prime factors, it's a 3-almost prime.  If you mean a number with three integral factors (prime, composite, or 1), it's the square of a prime.\n\nList of 3-almost primes: http://www.research.att.com/~njas/sequences/A014612\nList of squares of primes: http://www.research.att.com/~njas/sequences/A001248
216982
2, 3, 5, 7, 11, 13, 17, 19\n1 is NOT prime
569147
The next three numbers are 108,138,150\nSubtract 1 from each numbers in the series, we get\n3,5,11,17,29,41,59,71,101,....which are prime numbers.\nAdd 1 to each numbers to get this series, 5,7,13,19,31,43,61,73,103,.....\nWe see that only those un-prime numbers are taken which are mean of two prime numbers.(for e.g 72 is the mean of 71 and 73). Un-prime number 24 is not taken because it is between 23 (prime) and 25 (un-prime).\nThe prime numbers after 103 are 107,109,113,127,131, 137,139,149,151,157,163,167,173,179,181,191 etc.\nFrom here we see 108, 138 and 150 are three numbers which are mean of two prime numbers.\n\nSo the next three numbers are 108,138,150\n\nGood question, thanks
7923
There isn't one. Mathematicians are working on it, but they have yet to find a pattern that covers all prime numbers (except for the fact they are divisible only by themselves and one.) There are patterns that cover some prime numbers, such as paired primes (where the difference between the two prime numbers is 2, such as 5 and 7), but there is no currently known way to quickly produce or check primes, which has important implications for the RSA algorithm (used in PGP for example), which relies on the complexity of primes for its security.
749230
Neither.  A prime number has exactly two distinct factors, and 1 has only one.  And obviously it isn't composite.\n\nSome people will say 1 is prime, but they are wrong.
899443
39 can be devided by 3 people.  Scary.  \n\nBut you get the jist of what is a prime and a square from the other posts.
858640
It is the number of Platonic solids.\nIt is the only prime number that ends in 5.\nA 5-sided polygon (pentagon) has 5 diagonals.\nIt is the smallest prime in the first sexy prime pair (5, 11).\nIt is the smallest prime which is the average of its two neighboring primes.\nIt is the smallest Wilson prime.\n5 is the 5th Fibonacci number.
1133242
a number which can be divided evenly only by itself and 1...\n\n"...in mathematics, a prime number (or a prime) is a natural number greater than one whose only positive divisors are one and itself. Said another way, a prime number can only be divided into equally by 1 and itself (3 is a prime number because 1 goes into it equally 3 times and 3 goes into it equally once, there is no remainder.) A natural number that is greater than one and is not a prime is called a composite number. The numbers zero and one are neither prime nor composite. The property of being a prime is called primality. Since 2 is the only even prime number, the term odd prime refers to all prime numbers greater than 2. Prime numbers are of course of prime importance in number theory.\n\nThe sequence of prime numbers begins as follows:\n\n2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, ... \n\n2 is the only even prime number "
685138
actually the way i see it there are two numbers in the space.\nThe difference between each number is a prime number(consecutive prime numbers)\ndifference between 1 and 3 is 2\ndifference between 3 and 6 is 3\ndifference between 6 and 11 is 5\ndifference between 11 and the next no. is 7 i.e 18\ndifference between 18 and next no. is 11 i.e. 29\ndifference between 29 and 42 is 13\ngot it?\nhope your question was wrong.. hehe\n\nWhat i'm trying to say is the two numbers are\n18 and 29
171079
http://winklerwordart.com/signalglyph (that ends with signalglyph) and http://winklerwordart.com/Primes.html (that ends with Primes.html -- why does Yahoo do that ... thing?) are not saying anything new about prime numbers.\n\nThe product of the first three primes -- 2, 3, and 5 -- is 30.  Every other prime number has to be relatively prime to 30.  That rules out 30n + k for all but 30(1 - 1/2)(1 - 1/3)(1 - 1/5) = 8 values of k in the range 0 .. 29.  I.e., no prime greater than five can be 30n + k for k = 0, 2, 3, 4, 5, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28.  The primes greater than 5 (and their products amongst themselves) must all be of the form 30n + k for k = 1, 7, 11, 13, 17, 19, 23, 29.\n\nIf you go up to 2*3*5*7 = 210, then the primes greater than 7 can only fall into the 48 residue classes modulo 210 that are relatively prime to 210.\n\nAn even better way to view it is to go in the other direction.  All primes greater than 3 are either of the two forms 6n + 1 or 6n + 5.  Or go one more step: all primes greater than 2 are odd.  Woo hoo, do I get my own web site for that? :-)\n\n"Stopping" at the 8 residue classes modulo 30 that are relatively prime to 30 strikes just the right balance between too trivial (the single class 1 modulo 2 or the two classes 1 and 5 modulo 6) and too "complicated" (48 residue classes modulo 210, more for 2*3*5*7*11, etc.).
236680
A perfect square is the product of a whole number times itself, therefore, there is at least one whole number (its square root) which evenly factors into the number.  Since that is the case, the number can't be prime.\n\nOr you could argue the other way, a prime number is a number for which there is no other whole number (other than itself and 1) which can be a factor of it.  Since a perfect square has at least its square root as an factor, a prime cannot be a perfect square.
283106
7  14  21  35  49  77\n\nIt's 7 multiplied by primes between 1 and 11 (though 1 isn't officially a prime number)\n\n7*1\n7*2\n7*3\n7*5\n7*7\n7*11
90213
it isn't prime: it's divisible by 7 (which is one of my favourite numbers).\nIf you add it to 668^2 you get 669^2 (but that's a trick you can do with every odd number).