General Discussion

usonian

(26,364 posts) Wed Apr 29, 2026, 08:23 PM Apr 29

8 6 4 7 is a prime number.

There you go.
Courtesy of https://www.numberempire.com/8647

Now, here's something interesting.

In binary: 10000111000111
In Hexadecimal: 0x21C7, or just plain 21C7
So you could say: 21👁️7

If you think that the binary is hard to remember,
10
000
111
000
111

PRETTY COOL!
Ordering my binary bumper sticker tonight.

AND IF THAT'S NOT ENOUGH

I like that. I've already memorized it.
A tune, anyone?
Ordering a second bumper sticker.

More obscure

Not so easy to memorize.

10 replies

= new reply since forum marked as read

Highlight:

8 6 4 7 is a prime number. (Original Post) usonian Apr 29 OP

I Love Number Play ProfessorGAC Apr 29 #1

Comey thought it was somebody's beach house number? pwb Apr 29 #2

I have been humming a tune in my head on the scale tones 8-6-4-7! Sparkly Apr 29 #3

Love the math thing! kimbutgar Apr 29 #4

Oh yeah, I knew that IcyPeas Apr 29 #5

AND the binary and the square root? usonian Apr 29 #7

Even the gazintas IcyPeas Apr 30 #10

Thanks, but now my head hurts. surfered Apr 29 #6

for the capitalists in your life dweller Apr 29 #8

This message was self-deleted by its author IcyPeas Apr 30 #9

ProfessorGAC

(77,165 posts)

1. I Love Number Play

Reply to usonian (Original post)

Wed Apr 29, 2026, 08:28 PM

Apr 29

And am a geek about prime numbers.
One time near the end of set up, I was checking vocal mics so I said "Check 1, 2, 3, 5, 7, 11, 13, 17, 19: and some guy who was already in the club says "Hey, that's the prime number series!"
I said "People like you sir, are the reason I do that!"