If the 2012 root of M is 3, the 2011 root of n is 7, and m and N are natural numbers, then the end number of Mn is
The power of M = 3
The 2011 power of n = 7
So Mn = 3 * 3 to the power of 2011 * 7 to the power of 2011
=The 2011 power of 3 * 21
Because the mantissa of any power of a number with mantissa 1 is still 1
So the mantissa of Mn is 3
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