E ai ki te mea i tuhipokatia i runga, he ōrite te GCD ki te hua o ngā take matua i tiria e ngā tau e rua a me te b. He hīkoakore hoki ngā tikanga o nāianei mō te whakarea matua; He maha tonu ngā pūnaha tuhimuna o nāianei e whakawhirinaki tonu ana ki tērā tauwhāiti.