Number Choosing Contest.

14, 16, 18, 19, 15

*TREMENDOUS EXHALATION*

14: breaks YZ & 2, 4 and 5.
16: breaks YZ & 2 and 5.
18: breaks YZ & 2, 4 and 5.
19: breaks YZ & 4. LOOK. HERE IT IS. YOUR BEST NUMBER SO FAR. SEE HOW VASTLY BELOW A MILLION IT IS.
15: breaks YZ & 2, 4 and 5.