5150660154191

This number is a prime.

                                                              515 0660154191

Mike Keith found that {9, 1, 3, 7} occurs at p = 5150660154191 in the "24 Permutations Puzzle".

The first 19 terms:

{3,7,1,9}, p = 53
{3,7,9,1}, p = 239
{7,3,1,9}, p = 347
{7,3,9,1}, p = 619
{7,9,3,1}, p = 3529
{7,9,1,3}, p = 3581
{3,1,7,9}, p = 6781
{3,9,7,1}, p = 10949
{7,1,3,9}, p = 23431
{9,7,3,1}, p = 72269
{3,9,1,7}, p = 176081
{3,1,9,7}, p = 960389
{9,3,7,1}, p = 6263539
{1,7,3,9}, p = 45845791
{1,3,7,9}, p = 45853453
{7,1,9,3}, p = 646488749
{1,3,9,7}, p = 716407555481
{9,3,1,7}, p = 5140571155981
{9,1,3,7}, p = 5150660154191 
{?,?,?,?}, p = ?
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{?,?,?,?}, p = ?
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