A buddy of mine gave me this note. Don't really know if this is considered a repeater. He also tried to give me a $1 note with 6 eights in the serial number. I didn't want to take his poker note.
A repeater is a note where the series of 4 numbers repeats itself like 11221122. A radar reads the same from the front or back like 11222211. If these occur with only 2 different digits it is called a binary. The serial number 77177177 is a radar, it repeats and it is a binary.
Thanks guys. Every bit of info I get helps. I have a pretty good grip on it now. I never really payed much attention to the notes, but there isn't one that goes through my hands that I don't look at now. The binary is a new one for me.
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