this post was submitted on 11 Oct 2023
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A meme for math people (lemmy.world)
submitted 9 months ago* (last edited 9 months ago) by hypertown@lemmy.world to c/memes@lemmy.ml
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[–] BlueMagma@sh.itjust.works 5 points 9 months ago* (last edited 9 months ago) (1 children)

Brilliant, now I wonder what ages this works for, I figured only 1 and 2, but then I realised we could write the father's age in other bases..

1 = 2^0 (20 b10)

2 = 2^1 (21 b10)

3 = 3^1 (31 b7 = 22)

6 = 6^1 (61 b4 = 25) if they are lucky the grand father will be 61 that year :-D

8 = 2^3 (23 b12 =27)

9 = 9^1 (91 b3 = 28)

14 = 14^1 (141 b4 = 33)

[–] aDogCalledSpot@lemmy.zip 1 points 9 months ago (1 children)

You have mistakes in a few of those. The number "61" doesnt exist in b4. 25b10 in b4 is "121".

Similar problem with 91b3 and 141b4.

[–] BlueMagma@sh.itjust.works 1 points 9 months ago* (last edited 9 months ago)

Indeed, I was so focused on the algebraic side I didn't even think about it :-D

I was computing 6*4+1=25