Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ ¹ ² ³ °
 

You are not logged in. #1 20130407 18:15:20
Primal daysI noticed that the program "Calendar Magic" now comes with math utilities. It is a free download. Sapere aude! (Dare to be wise.) #2 20130407 18:20:06
Re: Primal daysHi mrwrite; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #3 20130407 18:21:14
Re: Primal daysNice Information, thank you. 'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.' 'God exists because Mathematics is consistent, and the devil exists because we cannot prove it' 'Who are you to judge everything?' Alokananda #4 20130407 18:42:01
Re: Primal days
Calendar Magic is a tool for calendars. It has virtually all the calendars in use today. (Even Persian.)
You are right! A most embarrassing error. Sapere aude! (Dare to be wise.) #5 20130408 12:15:16
Re: Primal daysThe full list for 2013 is: Sapere aude! (Dare to be wise.) #6 20130408 18:43:53
Re: Primal daysAgnishom, in a different forum you say:
Why do you need the 4,118,054,813 primes? The first 50 million are on the internet. You can download them. Sapere aude! (Dare to be wise.) #7 20130408 23:55:21
Re: Primal daysHello 'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.' 'God exists because Mathematics is consistent, and the devil exists because we cannot prove it' 'Who are you to judge everything?' Alokananda #8 20130409 05:57:18
Re: Primal daysIf you need to express a ten digit number as the sum of two primes, a list of primes up to NINE digits would suffice (except for 10 digit primes). You only need 50,847,534 primes to make a sum of all possible 10 digit compound numbers. That is available free online. Sapere aude! (Dare to be wise.) #9 20130409 06:11:14
Re: Primal daysHi; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #10 20130410 07:19:54
Re: Primal days Right! I get it now. He would need a two and 10 digit primes to test all the even numbers from 2,000,000,002 to 4,999,999,998. Likewise a single digit (odd) prime and a 10 digit prime for the odd numbers in range. Sapere aude! (Dare to be wise.) #11 20130412 13:27:43
Re: Primal daysOne! Just a normal computer anybody uses 'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.' 'God exists because Mathematics is consistent, and the devil exists because we cannot prove it' 'Who are you to judge everything?' Alokananda #12 20130412 14:46:58
Re: Primal daysHow many are left out? Did you count them? In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #13 20130412 14:48:33
Re: Primal daysHow many are left out from the total of what? 'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.' 'God exists because Mathematics is consistent, and the devil exists because we cannot prove it' 'Who are you to judge everything?' Alokananda #14 20130412 14:50:57
Re: Primal daysHow many ten digit numbers are not representable by your method? In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #15 20130412 14:57:25
Re: Primal daysI really don't think there is any such number. 'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.' 'God exists because Mathematics is consistent, and the devil exists because we cannot prove it' 'Who are you to judge everything?' Alokananda #16 20130412 19:07:53
Re: Primal days
I am not a millionaire either. But I have access to two computers. I was wondering if you were splitting the task between more than one computer. Sapere aude! (Dare to be wise.) #17 20130412 19:29:11
Re: Primal days
4,986,195,733 is a ten digit number that has only 70,619 and 70,607 as factors and no other prime factors except for 1. Last edited by mrwrite (20130412 19:38:52) Sapere aude! (Dare to be wise.) #18 20130412 22:48:12
Re: Primal days
Do you even have the idea what I am planning to do? 'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.' 'God exists because Mathematics is consistent, and the devil exists because we cannot prove it' 'Who are you to judge everything?' Alokananda #19 20130413 06:24:02
Re: Primal days
My only clue to your plan is what you said earlier:
and
There are 4,238,564 eight digit primes. Last edited by mrwrite (20130413 07:13:03) Sapere aude! (Dare to be wise.) #20 20130413 12:02:23
Re: Primal daysOkay, but why are you trying to multiply? 'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.' 'God exists because Mathematics is consistent, and the devil exists because we cannot prove it' 'Who are you to judge everything?' Alokananda #21 20130413 13:12:18
Re: Primal daysThat's right, you said SUM of two primes. This sounded so much like the theory of data pointers with primes, I assumed multiplication. Sapere aude! (Dare to be wise.) #22 20130413 14:30:00
Re: Primal daysYep 'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.' 'God exists because Mathematics is consistent, and the devil exists because we cannot prove it' 'Who are you to judge everything?' Alokananda 