1111111111111111111

This number is a prime.

                                                        111111111 1111111111

Single Curio View:   (Seek other curios for this number)
Each of the 10 palindromes in the trapezoidal
structure to the right contains 19 ones,
and the repunit prime, R19, is the
largest prime factor
of each one.
1111111111111111111
101111111111111111101
10101111111111111110101
1010101111111111111010101
101010101111111111101010101
10101010101111111110101010101
101010101010111111101010101010
101010101010101111101010101010101
10101010101010101110101010101010101
1010101010101010101010101010101010101

[Green]

Submitted: 2010-04-22 02:08:57;   Last Modified: 2010-04-22 02:36:48.
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