9876543211

This number is a prime.

Just showing those entries submitted by 'Loungrides': (Click here to show all)

An almost pandigital prime that can be represented as the difference of the reverse concatenation of first eleven terms of sequence 10, 9, ... , 1, 0, (i.e, ten to zero), minus the rep-digit number with eleven 9’s, i.e., 109876543210-99999999999. [Loungrides]