Question Bank - Number theory - Sibanand Pattnaik
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@sibanand_pattnaik 18000=2^43^25^3
=3!
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@sibanand_pattnaik x^2+x+1
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@sibanand_pattnaik r= 3, 34, 65
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@sibanand_pattnaik 10^×/13
euler of (13)=12
we know 10^12/13=1
thus x can take multiple of 12, which is 12 to 192 which is 16 values .
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@sibanand_pattnaik 8
458
916
91
182
364
36
72
144
14
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@sibanand_pattnaik 7, 11, 17
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@sibanand_pattnaik a=21
b=15
21-15=6
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@sibanand_pattnaik 500th digit 17999
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@sibanand_pattnaik Ans is 9
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@sibanand_pattnaik b18081