this post was submitted on 11 Oct 2023
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submitted 1 year ago* (last edited 1 year ago) by hypertown to c/[email protected]
 
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[–] mumblerfish 142 points 1 year ago (3 children)

Same trick will work next year too!

[–] [email protected] 53 points 1 year ago (2 children)
[–] affiliate 1 points 1 year ago

i thought they meant 2^0^ + 1, but this makes way more sense

[–] [email protected] 5 points 1 year ago* (last edited 1 year 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)

[–] [email protected] 1 points 1 year 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.

[–] [email protected] 1 points 1 year ago* (last edited 1 year 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

[–] [email protected] 1 points 1 year ago (1 children)

And the following year as well!

[–] [email protected] 1 points 1 year ago (1 children)

Poor kid going from 2 to 8 in 1 year.

[–] [email protected] 0 points 1 year ago* (last edited 1 year ago) (2 children)
[–] [email protected] 1 points 1 year ago* (last edited 1 year ago) (1 children)

Ahh yes your right, my bad. I was thinking the power was equal to her age but it is actually -1 her age. I was doing 2^3 when it should have been 2^2. I guess that is what I get when I don't show my work. Dang math teacher was right.

[–] [email protected] 1 points 1 year ago

And I thought you were making a follow-up joke to mine..

[–] [email protected] 0 points 1 year ago* (last edited 1 year ago)