document.write( "Question 1191159:  what are the last two digits of the number  when it is fully calculated out? \n" );
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| Algebra.Com's Answer #822931 by greenestamps(13209)     You can put this solution on YOUR website! \n" ); document.write( "The sequence of the last two digits of increasing powers of 7 will form a repeating pattern. Use the length of that pattern to find the answer. \n" ); document.write( "07 \n" ); document.write( "49 \n" ); document.write( "43 \n" ); document.write( "01 \n" ); document.write( "07 \n" ); document.write( ".... \n" ); document.write( "That is a very short pattern with length 4. \n" ); document.write( "The exponent 8910, divided by 4, leaves remainder 2, so the answer is the 2nd number in the repeating pattern: 49 \n" ); document.write( "ANSWER: 49 \n" ); document.write( " \n" ); document.write( " |