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You can do this with logarithms

2 to the x equals 10 to the 80

xlog2 = 80log 10 = 80

x = 80/log2 = 266

2 to the 266 power = 10 to the 80 power

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โˆ™ 2012-12-03 19:54:01
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Q: What power of 2 ---- that is 2 raised to what exponent --- is approximately equal to 10 raised to the 80th power --- the approximate number of atoms in the observable universe?
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