document.write( "Question 1064533: Find the greatest 4 digit number that has exactly 3 factors. \n" ); document.write( "
Algebra.Com's Answer #679605 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
That's trial and error.
\n" ); document.write( "You do it.
\n" ); document.write( "Start with 9999 and count down.
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\n" ); document.write( "I'm not sure about the other tutor's answer.
\n" ); document.write( "1 is not usually considered when factoring.
\n" ); document.write( "If 1 is accepted as a factor, then 9409 can be 1*1*1*1*97*97.
\n" ); document.write( "And, if 1 is allowed --> 1*17*769 = 9997
\n" ); document.write( "If 1 is not allowed ---> 2*19*263 = 9994
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\n" ); document.write( "If using the same factor more than once is allowed, then
\n" ); document.write( "then 3*3*11*101 is the solution.
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\n" ); document.write( "But, the author of the problem should have specified whether or not to use 1 as a factor.
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\n" ); document.write( "It's a useless problem, nothing to be learned from it.
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document.write( "	9999	9998	9997	9996	9995	9994	9993	9992	9991	9990\r\n" );
document.write( "										\r\n" );
document.write( "2	4999.50	4999.00	4998.50	4998.00	4997.50	4997.00	4996.50	4996.00	4995.50	4995.00\r\n" );
document.write( "3	3333.00	3332.67	3332.33	3332.00	3331.67	3331.33	3331.00	3330.67	3330.33	3330.00\r\n" );
document.write( "5	1999.80	1999.60	1999.40	1999.20	1999.00	1998.80	1998.60	1998.40	1998.20	1998.00\r\n" );
document.write( "7	1428.43	1428.29	1428.14	1428.00	1427.86	1427.71	1427.57	1427.43	1427.29	1427.14\r\n" );
document.write( "11	909.00	908.91	908.82	908.73	908.64	908.55	908.45	908.36	908.27	908.18\r\n" );
document.write( "13	769.15	769.08	769.00	768.92	768.85	768.77	768.69	768.62	768.54	768.46\r\n" );
document.write( "17	588.18	588.12	588.06	588.00	587.94	587.88	587.82	587.76	587.71	587.65\r\n" );
document.write( "19	526.26	526.21	526.16	526.11	526.05	526.00	525.95	525.89	525.84	525.79\r\n" );
document.write( "23	434.74	434.70	434.65	434.61	434.57	434.52	434.48	434.43	434.39	434.35\r\n" );
document.write( "29	344.79	344.76	344.72	344.69	344.66	344.62	344.59	344.55	344.52	344.48\r\n" );
document.write( "31	322.55	322.52	322.48	322.45	322.42	322.39	322.35	322.32	322.29	322.26\r\n" );
document.write( "37	270.24	270.22	270.19	270.16	270.14	270.11	270.08	270.05	270.03	270.00\r\n" );
document.write( "41	243.88	243.85	243.83	243.80	243.78	243.76	243.73	243.71	243.68	243.66\r\n" );
document.write( "43	232.53	232.51	232.49	232.47	232.44	232.42	232.40	232.37	232.35	232.33\r\n" );
document.write( "47	212.74	212.72	212.70	212.68	212.66	212.64	212.62	212.60	212.57	212.55\r\n" );
document.write( "53	188.66	188.64	188.62	188.60	188.58	188.57	188.55	188.53	188.51	188.49\r\n" );
document.write( "59	169.47	169.46	169.44	169.42	169.41	169.39	169.37	169.36	169.34	169.32\r\n" );
document.write( "61	163.92	163.90	163.89	163.87	163.85	163.84	163.82	163.80	163.79	163.77\r\n" );
document.write( "67	149.24	149.22	149.21	149.19	149.18	149.16	149.15	149.13	149.12	149.10\r\n" );
document.write( "71	140.83	140.82	140.80	140.79	140.77	140.76	140.75	140.73	140.72	140.70\r\n" );
document.write( "73	136.97	136.96	136.95	136.93	136.92	136.90	136.89	136.88	136.86	136.85\r\n" );
document.write( "79	126.57	126.56	126.54	126.53	126.52	126.51	126.49	126.48	126.47	126.46\r\n" );
document.write( "83	120.47	120.46	120.45	120.43	120.42	120.41	120.40	120.39	120.37	120.36\r\n" );
document.write( "89	112.35	112.34	112.33	112.31	112.30	112.29	112.28	112.27	112.26	112.25\r\n" );
document.write( "97	103.08	103.07	103.06	103.05	103.04	103.03	103.02	103.01	103.00	102.99\r\n" );
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document.write( "

\n" ); document.write( "I used Excel, it took just a few minutes.
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