十六進制者,基數自十六也,實屬24{\displaystyle 2^{4}}進制,故常用於信息技術。是進制常以A至F代十至十五,亦可記曰0,1,2,3,4,5,6,7,8,9,0∗,1∗,2∗,3∗,4∗,5∗{\displaystyle 0,1,2,3,4,5,6,7,8,9,0^{*},1^{*},2^{*},3^{*},4^{*},5^{*}}