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Những Cái Tên Thú Vị Của Các Con Số Trong Toán Học
Những Cái Tên Thú Vị Của Các Con Số Trong Toán Học
Nhngcitnthvcaccconstrongtonhc
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TRANGNHT
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BANGIMHIU
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Home Tchuynmn
trongtonhc
Bangimhiu
12:49,14/05/2014
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Lttruycp
Nhngcitnthvcacccons
Nhngcitnthvcaccconstrongtonhc
ThngboKhoch
ontrng
Cngon
Nhng ci tn th v ca cc con
strongtonhc
Tchuynmn
Ton
Ccutchc
Thvinchuynmn
Hotng
L
Ho
SinhK
Bimi
Phtminhranhngconslmttrongnhngthnhtutolncanhnloi.
Nhngconsxuthinttccclnhvc,tnghincukhoahcnkinh
t, ti chnhBi vit ny xin a ra cho ngi c mt gc nhn mi v
nhngcons,gcnhngiitrDuth,khic,mongbnngchiu,nu
nhbnkhngthcstm.
1.Cpsthnthit
Anh
Vn
a
SGD
Th
Tin
Linkt
Hai s to thnh mt cp s thn thit khi chng tun theo quy lut: S ny
bngtngttcccccaskia(trchnhs)vngcli.Cpsthn
thinutinctimra,vcngcchngminhlcp"sthnthit"nh
nht,lcps:220v284.Hythphntchmtcht:S220ngoibnthn
nra,ncnc11csl1,2,4,5,10,11,20,44,55v110.Tngca11
csnyvangbng284.Ngcli,s284ngoibnthnn,ncn5
cskhcl:1,2,4,71,142,tngcachngcngvangbng220.
HcsinhSinhvin
Nghincukhoahc
Tracuim
Nhpim
Dinn
ngNhp
Tntikhon
Mtkhu
Nhmtkhu
ngnhp
Thmdkin
BnbitnWebsitenyqua
ngunthngtinno?
ThngbotNhtrng
CngngChuynQung
BnhACQB
Google
Bphiu Ktqu
http://chuyenqb.com/web/tochuyenmon/toan/thuvien/934nhungcaitenthuvicuacacconsotrongtoanhoc
IBNGTRNGTI
Ngcdngthclginhlitnh
yu
KHOCHCNGTCTUN
14NMHC20152016.
NGHGIO
DANHSCHTPTH,C
NHNNGHIBNG
CHUYNNAMNM2015
ITNGVNGUYNGIP
CHNDUNGMTNHGIO
CCHMNG
ntngvtitdymnVtL
bngtingAnh
KHOCHCNGTCTUN
13NMHC20152016.
LtraotngknimchngV
snghipKimtracang
chongchTQucKhnh
Chngtrnh"Hcbngvtr
giptichnh"bcCnhnv
Caohc
Bicquantm
Tonvnbipht
biukhaigingca
ChtchUBND
TnhQungBnhti
trngTHPT
Chuyn
07:21,06/09/2008
Mtsvnkimtranhgikt
quhctpcaHS
21:32,03/11/2009
Tngkt4nmthchincucvn
ng"Hctpvlmtheotm
gngocHChMinh"
21:22,01/10/2010
NHNNGHATRONGTHLC
VNTINCANGUYNNH
CHIU
21:17,26/11/2008
cngbithuhochchuyn
"Ttng,tmgngoc
HChMinhvxydngngta
thtstrongsch,vngmnhl
oc,lvnminh
18:37,20/04/2010
Linkt
1/4
17/11/2015
Nhngcitnthvcaccconstrongtonhc
PhnggiodctrunghcQung
Bnh
SgiodcotoQungBnh
Bgiodcoto
3.Emirp
Nubnangctrattrntrongtinganhthchcskhngtmthyu.Bi
nltvitngccatPrime.
Mtemirplmtsnguyntmkhiongcvtrccchscan,ta
cngcmtsnguynt.nhnghanykhngbaogmccsnguynt
xuingc(nh151hoc787),cngkhngphisnguynt1chsnh7.
Nhngemirpsutinctmral:13,17,31,37,71,73,79,97,107,113,
149,157...
Tnh n nay, cc emirp ln nht c bit n l 1.010.006 941.992.101
104.9991.
4.Smnhm
NgungccacitnnyxutphttstchgtchnAchilles.Lmtvanh
hngchintranhyscmnh,chcmtimyuduynhtlgtchn.Mt
scgilsmnhmkhinngthivachiahtchosnguyntv
chiahtchobnhphngcasnguynt.Chnghn,s25lsmnh
m,vnvachiahtchosnguynt5,vbnhphngca5(tc25).Nh
vy, mt s mnh m, cng c th trng vi mt s hon ho (s hon ho
cnhnghnhtrn).
Sauylmtdanhschcattcccconsmnhmgia1v1000:1,4,
8,9,16,25,27,32,36,49,64,72,81,100,108,121,125,128,144,169,196,
200, 216, 225, 243, 256, 288, 289, 324, 343, 361, 392, 400, 432, 441, 484,
500, 512, 529, 576, 625, 648, 675, 676, 729, 784, 800, 841, 864, 900, 961,
968,972,1000.
5.Skquc
hiuskquclg,tacniquahainhngha:Sphongphvsbn
honho.
Sphongphlccsmtngcccscas(khngkchnhn)ln
hns.Vd,s12ctngcccs(khngk12)l1+2+3+4+6=
16>12.Do12lmtsphongph.
Sbnhonho,lstnhinbngtngttchocmtsccan.Nh
vy,tpsbnhonhornghntpshonho.Mtssbnhonho:6,
12,18,20,24,28,30,36,40
Nh vy, gia hai tp hp s bn hon ho v s phong ph c cc phn t
chung.
Vcuicng,skquclg?Mtslskqucnunlsphongph
nhngkhngphilsbnhonho.Nicchkhc,tngccccanl
lnhns,nhngtngcamtshocttcccckhngbaogibng
s.
Visutintrongtphpskqucl:70,836,4030,v5830.
6.Shnhphc
Mtshnhphccxcnhbiqutrnhsauy:
Btuvibtksnguyndng,thaythsbngtngccbnhphng
http://chuyenqb.com/web/tochuyenmon/toan/thuvien/934nhungcaitenthuvicuacacconsotrongtoanhoc
2/4
17/11/2015
Nhngcitnthvcaccconstrongtonhc
ccchscan,vlpliqutrnhchonkhisbng1(nimns
li),hocnlpvtntrongmtchukmkhngbaogm1.
Nhngconsmqutrnhnyktthctrong1lnhngconshnhphc,
trongkhinhngngikhngktthctrong1lnhngconskhnghilng
(hocsbun).
\Hycngthvis44:
+Thnht,4^2+4^2=16+16=32
+Tiptheo:3^2+2^2=9+4=13
+Vmtlnna:1^2+3^2=1+9=10
+Cuicng:1^2+0^2=1+0=1
lmtshnhphc.
iu th v l s hnh phc l rt ph bin, c 143 s t 0 n 1000. V s
hnhphclnnhtvikhngcchslplil986.543.210.lmtcon
shnhphcthcs.
7.Sbtkhxmphm
Citnkqucnyctchonhngskhngthvitdidngtngtt
cccccamtsnguyndngbtk(khngtnhsnguyndng).
Chnghn,4khngphilsbtkhxmphm,v4=3+1.Trong3v1
lttccccca9.Cn5lsbtkhxmphmvcchduynhtvit5=
4+1.Nubnllunyltngcca4thbnnhm.Vtngcccca
4phil:1+2=3.
Ccsbtkhxmphmutin:2,5,52,88,96,120,124,146,162,188,
206,210,216,238,246,248,262,268,276,288,290
8.Stmn
Stmnlnhngsbngtngccmbcbacamichscan.VD:
153=1^3+5^3+3^3
370=3^3+7^3+0^3
371=3^3+7^3+1^3
407=4^3+0^3+7^3.
Cc con s, khi c t tn bi cc nh khoa hc, chnh bn thn h cng
nhnrasphphimcachng.ylnhngkhinimkl,rtthchhp
choccctcuvckhnnggiitr.Dusao,cngxinanngi
cmtgcnhnmivtonhc.
Giovin:LThMaiHoa
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