WhakamĀrama Āpitihanga
Koia nei ngā tau toitū i raro i te 20: {2, 3, 5, 7, 11, 13, 17, 19}
Ko ngā tauwehe o te 18: {1, 2, 3, 6, 18}
Ko ngā tauwehe toitū o te 18: {2, 3}
He hoahoa rākau tēnei e whakaatu ana i ngā tauwehe toitū o te 24:
E rua anake ngā tauwehe o tētahi tau toitū, arā, ko taua tau anō me te 1. E taea ana te tau toitū te whakawehe pū ki a ia anō me te 1, koia anake. Hei tauira, he tau toitū te whitu: 7 ÷ 1 = 7 7 ÷ 7 = 1
There are only two factors of a prime number - the number itself and one. A prime number can be divided exactly only by itself and one. There are no other factors.
tau - number
toitū - undisturbed, untouched
Tuhia ngā tau toitū i raro iho i te 10.
He aha koe i mōhio ai he tau toitū te tekau mā whitu?
He tau toitū te whitu nā te mea ko te whitu me te kotahi anake ōna tauwehe.