Hmm... 64^4... 6*4 = 24 = 16777216 16^5... 4*5 = 20 = 1048576. Damn, gotta write down the numbers and subtract 'em. I memorized the powers of 2 for 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,20,24 quite a few years ago as a child. It's been surprisingly useful during my life.
The whole clip is of length 10:21. It took me 21 seconds to figure out the answer is 2^24 * 15, but needed another 10 minutes to figure out the final answer. Human technology advances from abacus to calculator to CPU to GPU, why are we going back to the stone age?
2^24 - 2^20 = 2^4 * 2^20 - 2^20 = 15 * 2^20 = 15M , M=k^2 , k=1024
Hmm...
64^4... 6*4 = 24 = 16777216
16^5... 4*5 = 20 = 1048576.
Damn, gotta write down the numbers and subtract 'em.
I memorized the powers of 2 for 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,20,24 quite a few years ago as a child. It's been surprisingly useful during my life.
52^1 4^13^1 4^13^1^1 2^2^1^1^1 1^2(x ➖ 2x+1).
The whole clip is of length 10:21. It took me 21 seconds to figure out the answer is 2^24 * 15, but needed another 10 minutes to figure out the final answer. Human technology advances from abacus to calculator to CPU to GPU, why are we going back to the stone age?
2^20*15
I don't know what kind of preschool olympiad question it is