Punningly on cube (mathematical sense) and Cuban, though there is no meaningful connection with the country of Cuba.
释义（英文）
名词Noun
(mathematics) A prime number that is a solution to one of two specific equations involving third powers of x and y. The two equations are p=x3−y3x−y, x=y+1, y>0 and p=x3−y3x−y, x=y+2, y>0.