There have been a total of 14.
Last Name J (4) :
Andrew Jackson
Andrew Johnson
Lyndon Johnson
First name J (10):
John Adams (2)
James Madison (4)
James Monroe (5)
John Tyler (10)
James K. Polk (11)
James Buchanan (15)
James Garfield (20)
John F. Kennedy (35)
Jimmy Carter (39)
99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888
Two presidents: James Madison and James Monroe.
8 presidents
0. That includes First Names also.
Three US president's last names have started with A. John Adams, John Quincy Adams, and Chester A. Arthur.
Richard M. Nixon is the only US President with a last name that begins with the letter N.
The last five presidents have signed more than 100 executive orders.
I know sixteen u s presidents were governors before they were elected but I can't find out how many vice presidents were governnersbefore
5 of the first 10 presidents were re-elected for a second term.
=Franklin a. peirce=
5
24,346,229 as of the last count of 2011