document.write( "Question 210205This question is from textbook impact mathematics
\n" ); document.write( ": what is the ones digits of the product of twenty-five threes? explain how you found your answer. \n" ); document.write( "
Algebra.Com's Answer #158895 by Alan3354(69443)\"\" \"About 
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what is the ones digits of the product of twenty-five threes? explain how you found your answer.
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\n" ); document.write( "It's 3.
\n" ); document.write( "The least significant digit is cyclic, it goes:
\n" ); document.write( "exp LSD
\n" ); document.write( "--------
\n" ); document.write( "0....1
\n" ); document.write( "1....3
\n" ); document.write( "2....9
\n" ); document.write( "3....7
\n" ); document.write( "4....1
\n" ); document.write( "5....3
\n" ); document.write( "6....9
\n" ); document.write( "7....7
\n" ); document.write( "8....1
\n" ); document.write( "Every 4th power it's 1 (for all odd numbers except 5).
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\n" ); document.write( "So the 24th power it's 1, then it's a 3 for the 25th power.
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