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Posts: 2,182February 6 Its mad that 57,885,161 is prime never mind 2 raised to that power minus 1, the mind boggles, 39 days to check if you think how many calculations a modern computer can make per second its just f**kin incredible.
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Posts: 909February 7 So, if I've read that right... the next big prime would be 2 to the power of that new prime minus 1... but they don't have the computing power to calculate it?
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Posts: 7,959February 7OGV said:
So, if I've read that right... the next big prime would be 2 to the power of that new prime minus 1... but they don't have the computing power to calculate it?
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F**k knows mate, more Mikraz's area like... -
Posts: 2,182February 7OGV said:
So, if I've read that right... the next big prime would be 2 to the power of that new prime minus 1... but they don't have the computing power to calculate it?
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not with any certainty ogv, 2^11 -1= 2047 which is divisable by 23 and 89, so although there is the possibilty that it would be prime the rule does not apply to all prime numbers(however it is probably the best method we have for testing for prime numbers). -
Posts: 909February 7 Got yer... but if that is the case... surely there is scope to modify the formula once you identified instances in which it doesn't generate a prime?
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Posts: 2,182February 7 I imagine the people working on the GIMPS project are trying to figure that out, one things for sure and that is cleverer people than me have tried and failed to come up with a foolproof method of calculating primes. We don't fully understand them and its unlikely that we will any time soon. 57,885,161 is a relatively small number and there are a lot of prime numbers to test in between that and our new largest prime, good luck to them I say.
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Posts: 909February 7Deus Ex Machina said:
Why do we need to know such high primes? Or is it just the challenge?
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It's for fun.. and now because they win cash for finding them... I've had excel fired up since I read the article... reckon I'll crack it by Sunday... -
Posts: 7,959February 7 Deus Ex Machina said:Why do we need to know such high primes? Or is it just the challenge?
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No practical application tha' I know of, yet... -
Posts: 5,465February 7 what happened to the bumming posts ffs like have i logged onto university challenged
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Posts: 7,959February 7cjohno said:
what happened to the bumming posts ffs like have i logged onto university challenged
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Hahahaha yer can't f**in' win in this place like... -
Posts: 2,182February 7IdiAminDaDa said:
No practical application tha' I know of, yet...-----------------
Hard to apply when we don't fully understand them, however we use them in encryption and psuedorandom number generators. -
Posts: 2,182February 7cjohno said:
what happened to the bumming posts ffs like have i logged onto university challenged
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Ffs like, get a bit cerebral and someone brings up bumming. -
Posts: 7,959February 7mikraz said:
Ffs like, get a bit cerebral and someone brings up bumming.
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Hahahaha
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