Ethan watched as the professor considered his answer and took down notes. It was kind of weird to actually witness it, because, wasn't he supposed to be the one taking down notes and vice-versa? The prefect gave the professor a nod, and sighed inwardly. At least they're not going to tackle the Pythagoreans today...or...?

All right then. Master numbers. What does he know about it? The prefect turned to look at Adi and gave the Hufflepuff prefect a grin. Yep, the Master Numbers are 11, 22, and 33. But what else was missing? Surely, they did come across the Master Number while practising the Reduction Method.

Ethan raised his hand as soon as Adi was done talking. "Master Numbers cannot be reduced professor." And...they have their own meanings, right?