Atlanta does not have a first-place clinch number

Here is a scenario in which Atlanta wins all 56 of their remaining games (108 total) but does not but does not clinch first place.

To construct the scenario, we start with the current standings in the division:
Team             W	L	GL	PCT	GB
New York         55	49	58	0.529	0.0
Philadelphia     52	53	57	0.495	3.5
Atlanta          52	54	56	0.491	4.0
Washington       49	56	57	0.467	6.5
Miami            44	61	57	0.419	11.5

Next, we show how the remaining series of games in Atlanta's division plays out in the scenario:

Atlanta wins 6 games against Miami and loses 0.
Atlanta wins 3 games against New York and loses 0.
Atlanta wins 3 games against Philadelphia and loses 0.
Atlanta wins 9 games against Washington and loses 0.
Atlanta wins 35 games against teams outside the division and loses 0.

Miami wins 0 games against Atlanta and loses 6.
Miami wins 2 games against New York and loses 12.
Miami wins 6 games against Philadelphia and loses 0.
Miami wins 9 games against Washington and loses 0.
Miami wins 22 games against teams outside the division and loses 0.

New York wins 0 games against Atlanta and loses 3.
New York wins 12 games against Miami and loses 2.
New York wins 6 games against Philadelphia and loses 0.
New York wins 11 games against Washington and loses 0.
New York wins 24 games against teams outside the division and loses 0.

Philadelphia wins 0 games against Atlanta and loses 3.
Philadelphia wins 0 games against Miami and loses 6.
Philadelphia wins 0 games against New York and loses 6.
Philadelphia wins 7 games against Washington and loses 0.
Philadelphia wins 35 games against teams outside the division and loses 0.

Washington wins 0 games against Atlanta and loses 9.
Washington wins 0 games against Miami and loses 9.
Washington wins 0 games against New York and loses 11.
Washington wins 0 games against Philadelphia and loses 7.
Washington wins 21 games against teams outside the division and loses 0.

Combining the current standings with the wins and losses from the scenario results in the following final standings:
TEAM             W	L	GL	PCT
Atlanta          108	54	0.667	0.0
New York         108	54	0.667	0.0
Philadelphia     94	68	0.580	14.0
Miami            83	79	0.512	25.0
Washington       70	92	0.432	38.0

# Atlanta Braves's magic number
# Atlanta's magic number
# Braves's magic number
# MLB Playoff Race