document.write( "Question 421474: Is the nine-digit number PQRST9875 divisible by 625? \n" ); document.write( "
Algebra.Com's Answer #294323 by robertb(5830)![]() ![]() You can put this solution on YOUR website! PQRST9875 = PQRST0000 + 9875.\r \n" ); document.write( "\n" ); document.write( "Now \n" ); document.write( "==> PQRST0000/625 is a positive integer, whereas 9875/625 = 79/5 in lowest terms. Hence |