[['rank', 'prime number', 'found by', 'found date', 'number of digits'], ['1st', '2 57885161 1', 'gimps', '2013 january 25', '17425170'], ['2nd', '2 43112609 1', 'gimps', '2008 august 23', '12978189'], ['3rd', '2 42643801 1', 'gimps', '2009 april 12', '12837064'], ['4th', '2 37156667 1', 'gimps', '2008 september 6', '11185272'], ['5th', '2 32582657 1', 'gimps', '2006 september 4', '9808358'], ['6th', '2 30402457 1', 'gimps', '2005 december 15', '9152052'], ['7th', '2 25964951 1', 'gimps', '2005 february 18', '7816230'], ['8th', '2 24036583 1', 'gimps', '2004 may 15', '7235733'], ['9th', '2 20996011 1', 'gimps', '2003 november 17', '6320430'], ['10th', '2 13466917 1', 'gimps', '2001 november 14', '4053946']]
there is a 2 - year gap between the finding date of the 4th and 5th entry
there is a 2 - year gap between the finding date of the [ENT] and [ENT] entry