Na hoailona o ka divisibility o ka helu

Mai ke kula laulā maʻamau, he nui loa hoomanao i loaʻa i na hoailona o ka divisibility. Ma lalo o kēia hopuna'ōlelo ike i ka rula, i ae hookeai lawa e ike ai i ko ka helu o ka lau o ke kau, me ka hana ana i ka mea i koke makemakika hana. Kēia papa hana ua ma muli o nā hana i hoʻokō me ka hapa nui o nā 'ikamu i loko o ka positional helu kahua.

Ka simplest na hoailona o ka divisibility nui hoomanao mai i ke kula laulā maʻamau. No ka laʻana, i ka mea e ma 2 kaʻana like i nā helu, ka hope helu i loko o ka moʻolelo i ke ahiahi. Kēia hiʻona ua loa ke puana hoomanao, a pili i ka hana. Inā mākou e kamailio e pili ana i ke kaʻina hana o ka ana ma 3, no ka mau helu, pili keia rula, i hiki ke kakaʻikahi e na kēia laʻana. He mea pono e loaʻa mai ina paha 273 ka he mau o ekolu. No keia mea, i ka i kēia hana. 2 + 7 + 3 = 12. Ke kūpono puu dala Ua puunaueia e 3, nolaila, a me 273 e e divisible ma 3, no laila, i ka hopena e ia i ka helu.

Na hoailona o ka divisibility ma ka 5 a me 10 E e like penei. Ma ka hihia mua, ka mea i hoʻopaʻa 'ia e pau i ka helu 5 a me 0 loko o ka lua o ka hihia, wale no 0. I mea e loaʻa mai ina ka mahele o he mau o ka eha, he mea pono e hoomau aku ia penei. ka hope mau huahelu mea pono e kaʻawale. Inā ia mea he papalua Aʻohe a me ka helu i mea divisible ka 4 me ka koena, a laila, a pau o ka mahele o he mau o ka mahele. It E e kaulana ia e hoʻohana i kēia mau hōʻailona wale nō i loko o ka kekimala nenoaiu. Ka mea, e i pili i nā ano o ka make helu ana. Ma ia manawa, e hoihoi i ko lakou mau rula e hilinaʻi ana ma ka'ōnaehana kumu.

Na hoailona o ka papa i loko o kēia 6. Ka helu mea he mau o ka 6, ina ia mea he mau o ka 2, a 3. I mea e ike ai i ko ka helu mea divisible ka 7, e ka palua ana o ka hope huahelu i loko o kona buke. Kēia hopena ua unuhi mai i ka palapala helu, a 'aʻole i lawe i loko o ka nui o ka hope huahelu. Keia rula i hiki ke kēia laʻana noonoo. He mea pono e loaʻa mai paha i kekahi mau o ka ehiku helu 364. No keia 4 hoonuiia ka 2, ua loaa 8. Next, hana i ka i kēia hana: 36-8 = 28. I ka hopena o ka lau o ka 7, a nolaila i ka loiloi mua helu 364, hiki ke maheleia i 7.

Hoailona divisibility 8 heluhelu like penei. Inā ka hope ekolu huahelu ma ka palapala helu i hana i ka helu i ka mea he mau o ewalu, i ka helu ia iho e e mahele ia i loko o ka hoʻoholo ma mua mahele.

E huli mai paha ka māheleʻia nunui-kuaiia helu o 12, penei. No ka mea ma luna o nāʻikepili divisibility Pono e ike ina paha ma ka helu o ka lau o ke 3 a me 4. Inā e hiki ka poʻe hookauwa no ka helu o ka mahele waiwai, he mea hiki no ke koho 'ia i ka divisible hana, a me ka hana o ka māheleʻana i ka 12. Ua pili A like rula i nā luna' nui, e laʻa me, umikumamalima. Ma keia hihia, mahele waiwai pono hana 5 a me 3. No ka loaʻa mai paha i ka helu mea divisible ka 14, oe e ike ina mea mea he mau o ka 7 a me ka 2. Pela, e hiki ke ike ia i loko o ka kēia laʻana. He mea pono e ike ai i ko ka mea i hiki ke puunaue 658 ka 14. ka hope huahelu i loko o ka ahiahi kākau i, nolaila, i ka helu mea he mau o elua. 8 Next, hoonui mākou ma ka 2, ua loaa 16. No ka 65, e unuhi 16. ka hopena 49 Ua divisible ka 7, e like me nā mea a pau i ka helu. Nolaila, 658 a hiki ke puunaueia e 14.

Inā ka mau huahelu hope o ka haawiia helu divisible ma ka 25, alaila, a pau o ka mea, e lilo ia i mau o keia mahele. No ka multidigit helu divisibility hiʻona 11 E e like penei. He mea pono e loaʻa mai paha i ka hoʻoholo ma mua lau o ka mahele koena unuhi puu o ka helu i ka mea ma luna o ke ōlaʻi, a hiki kahua i loko o kona mooolelo.

It E e hoʻomaopopo i nā'ōuli o ka divisibility o ka loa a me ka loa pinepine ko lakou ike nui simplifies na hana, i mea loaʻa ole wale ma ka makemakika, akā, i loko o maʻamau o ke ola. Mahalo i ka mea hiki, e ike ai i ko ka helu mea he mau o ka 'ē aʻe, e hiki koke hana i kekahiʻano o ka hana. Eia hou, i ka hoʻohana i kēia mau kiʻina hana ma ka makemakika lumi papa, e kōkua i ka hoʻomōhala Logical noʻonoʻo o nā haumāna a me na haumana, e kōkua i ka ulu ana o kekahi mau nā mea hiki.