circular number
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(Mathematics.) a number whose powers are expressed by numbers, the last digit in each being the number itself. (Example:) 5 and 6 are circular numbers because 5 squared = 25, 6 squared = 36, 5 cubed = 125, 6 cubed = 216, and so on.
★
(Mathematics.) a number whose powers are expressed by numbers, the last digit in each being the number itself. (Example:) 5 and 6 are circular numbers because 5 squared = 25, 6 squared = 36, 5 cubed = 125, 6 cubed = 216, and so on.
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