document.write( "Question 691193: how many 4 digit number combinations can be made out of the number 1486 \n" ); document.write( "
Algebra.Com's Answer #426574 by Edwin McCravy(20056)\"\" \"About 
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document.write( "There are 4 ways to choose the first digit.\r\n" );
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document.write( "For each of those 4 ways, that leave 3 ways to choose the \r\n" );
document.write( "second digit.\r\n" );
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document.write( "So that's 4×3 or 12 ways to choose the first two digits.\r\n" );
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document.write( "For each of those 4×3 ways to choose the first two digits,\r\n" );
document.write( "that leave 2 ways to choose the third digit.\r\n" );
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document.write( "So that's 4×3×2 or 24 ways to choose the first three digits.\r\n" );
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document.write( "For each of those 4×3×2 ways to choose the first three digits,\r\n" );
document.write( "that leaves just 1 way to choose the last digit.\r\n" );
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document.write( "So that's 4×3×2×1 or 24 ways to choose all four digits.\r\n" );
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document.write( "Here they all are:\r\n" );
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document.write( "1.  1468\r\n" );
document.write( "2.  1486\r\n" );
document.write( "3.  1648\r\n" );
document.write( "4.  1684\r\n" );
document.write( "5.  1846\r\n" );
document.write( "6.  1864\r\n" );
document.write( "7.  4168\r\n" );
document.write( "8.  4186\r\n" );
document.write( "9.  4618\r\n" );
document.write( "10.  4681\r\n" );
document.write( "11.  4816\r\n" );
document.write( "12.  4861\r\n" );
document.write( "13.  6148\r\n" );
document.write( "14.  6184\r\n" );
document.write( "15.  6418\r\n" );
document.write( "16.  6481\r\n" );
document.write( "17.  6814\r\n" );
document.write( "18.  6841\r\n" );
document.write( "19.  8146\r\n" );
document.write( "20.  8164\r\n" );
document.write( "21.  8416\r\n" );
document.write( "22.  8461\r\n" );
document.write( "23.  8614\r\n" );
document.write( "24.  8641\r\n" );
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document.write( "Edwin

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