Shiv'a Ve'arba'im Umatayim - mi yodeya?

Question

Who knows two hundred forty-seven?

Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will:

• Upvote all answers I consider relevant and interesting.

• Accept the what I think is the "best" answer.

• Go on to the next number.

I hope I didn't set a poor precedent by upping the ante for 246 ...

Answer 1

Every 247 years, the calendar repeats itself. (Sort of.)

Answer 2

The word Remez and the word Zemer both equal 247

Answer 3

On February 3, 1944, 247 people from Neu Dachs were gassed at Auschwitz, according to Höss ימח שמו.