Talk:Truncatable primes: Difference between revisions
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:Thanks Tikkanz. I've disallowed zero as this is done in part of the Mathworld article. It means disallowing '07' as being a prime for example, and seems reasonable. --[[User:Paddy3118|Paddy3118]] 03:27, 9 September 2010 (UTC) |
:Thanks Tikkanz. I've disallowed zero as this is done in part of the Mathworld article. It means disallowing '07' as being a prime for example, and seems reasonable. --[[User:Paddy3118|Paddy3118]] 03:27, 9 September 2010 (UTC) |
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== OEIS == |
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for reference, a few of the related OEIS sequences are [http://oeis.org/A024770 A024770] (right) and [http://oeis.org/A024785 A024785] (left). |
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Revision as of 02:38, 3 January 2011
Is Zero allowed?
I think the task should explicitly state whether zero is allowed in the numbers or not. If allowed then 999907 is the largest left-truncatable prime less than 1000000. --Tikkanz 00:58, 9 September 2010 (UTC)
- Thanks Tikkanz. I've disallowed zero as this is done in part of the Mathworld article. It means disallowing '07' as being a prime for example, and seems reasonable. --Paddy3118 03:27, 9 September 2010 (UTC)
OEIS
for reference, a few of the related OEIS sequences are A024770 (right) and A024785 (left).