Pretty much what the title says. Where in the Torah do we find something for which we need 10 Kohanim or 1 Yisrael?

closed as not a real question by Isaac Moses Jun 16 '11 at 22:11

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In a minyan with 11 Jews, if they are all Kohanim, one goes up to duchan and 10 stay behind and answer Amen. If one of them is a Yisrael, all the Kohanim can duchan and the one Yisrael answers Amen (he is significant on his own since the main mitzva is to bless the Yisraelim. (SA OC 128:2,5 MB 101)

  • re your comment in the deleted answer below: If you don't mind my asking, what other meyuchas families do you know of? To what extent can they prove their yichus? – Double AA Dec 25 '12 at 22:35
  • My former rav's last name was "Rappaport" and he was not a Cohen. I won't comment on what people thought of his yichus, but I don't think their opinion would have changed if he were a Cohen :-? – DanF Mar 29 '17 at 20:36
  • @DanF I know of a Rabbi Cohen who is actually just a Levi not a Cohen because when his great-grandfather came to the UK and couldn't speak any English and had a piece of paper that said Cohen as that was the name of the person he was going to stay with, ended up being called Cohen instead of Shumacher!!! – Joshua Pearl Sep 13 '17 at 17:35
  • @JoshuaPearl There are plenty of anomalies. One of the former presidents in my shul had a last name "Katz". He was Yisra'el. I also know a Kahana who is a Levi. – DanF Sep 13 '17 at 20:01

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