what is 2 to the power of 64?
93447
2^64=18446744073709551616
648512
r^2 + 16r + 64 = r^2 + 784\n16r = 720\nr = 45
313189
log2^3x = log64\n2^3x = 64\n2^3x = 2^6\n3x = 6\nx = 2
521593
Forty of course.\n\n=D
144487
the answer is exponents.
123577
96=2*48=2*(6*8)\n=2*(2*3)*(2*2*2)\nso its unique prime factorization is \n2^5 * 3
709650
Go for it... ask some questions and I'll try and help.  However, be forewarned, I like to give people the *method* to solve a problem, so they can do it later on their own.  You will rarely find me just giving out answers.  Hope that is okay.\n\nIn your example:\n64 - 40ab\n\nThe best you can do is factor out a common factor from 64 and 40.  Both of these numbers are divisible by 8 (8 x 8 and 8 x 5)... that means you get:\n\n8(8 - 5ab)\n\nSince 8 and 5 share no further common factors, you can't factor them any further.  Also, a and b are only part of the second number, so you can't factor those...  the answer is:\n8(8 - 5ab)
439989
42 (or forty two if you want two words instead of two numbers).
270361
I am not good in math but I think the answer is 425. Let me know if I am correct
726226
It is based on powers of 2.\n\ni.e. 2 ^ 10 = 1024
316838
You can do this without a calculator when noting that 2^10 is approximately 1024 = 10^3.  An error of 2.4%\n\nTherefore 2^64 = 2^4 x 2^60 = 16 x 10^18. Approximately.\n\nTo account for the error multiply this by 1.024 ^ 6 =1.15 and\nyou get 18.4 x 10^18.
885437
The last two digits are '25'. \n\n(This is the same for ANY integer power of 5 greater than 1).\n\nThe calculator won't give you the answer since it is not accurate enough.
226294
2^6 = 64\n4^-2 = 1/4^2 = 1/16 = 0.0625\n64 * 0.0625 = 4
126757
45\nYou need a number that is the 2 power of a whole number and falls in that range.
543957
The answer is 480. You can go to Progams, then Accessories, and then calculator.\n\nOr, you can multiply 24 times 2 which is 48 and add a zero to the end so it becomes 480
34264
Both numbers would have to be a multiple of 8, yet less than 40.  That leaves 8, 16, 24, 32.  32 does not have a multiple of 48, so that leaves 8, 16, 24.  Pick the two that add up to 40.
1012911
P = 2 L + 2 W\nL = 2 W + 8\n2W + (4 W + 16) = 64\nW = 8