- The original statement is wrong, for example 24:7,16 and 25:2,3,7,10,17.

This is because 49 is a square.

So:

A number is prime iff two consecutive integers do not share an anti-div.

Jon Perry

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http://groups.yahoo.com/group/Delphiadvanced - OK, do you mean, "A number p is prime iff two consecutive

integers a and a+1 do not share an anti-div, and p = 2a+1" ?

The sad part is I haven't dug into the archives deep enough

to know what an anti-div is. :P

Jon Perry wrote:>

-- Dan Morenus (dmorenus@...)

> The original statement is wrong, for example 24:7,16 and 25:2,3,7,10,17.

> This is because 49 is a square.

>

> So:

>

> A number is prime iff two consecutive integers do not share an anti-div.

>

> Jon Perry

-- This parachute is not warranted to be suitable --

-- for any purpose, including descending safely --

-- from an airplane to the ground. -- - See:

http://www.users.globalnet.co.uk/~perry/maths/antidivisor.htm

Jon Perry

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-----Original Message-----

From: Dan Morenus [mailto:dmorenus@...]

Sent: 29 September 2001 17:44

To: Jon Perry

Cc: Prime Numbers

Subject: Re: [PrimeNumbers] Two anti-div diamonds (correction)

OK, do you mean, "A number p is prime iff two consecutive

integers a and a+1 do not share an anti-div, and p = 2a+1" ?

The sad part is I haven't dug into the archives deep enough

to know what an anti-div is. :P

Jon Perry wrote:>

-- Dan Morenus (dmorenus@...)

> The original statement is wrong, for example 24:7,16 and 25:2,3,7,10,17.

> This is because 49 is a square.

>

> So:

>

> A number is prime iff two consecutive integers do not share an anti-div.

>

> Jon Perry

-- This parachute is not warranted to be suitable --

-- for any purpose, including descending safely --

-- from an airplane to the ground. --

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