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Meaning of factorion | Babel Free

Noun CEFR B2

Definitions

A number that is equal to the sum of the factorials of its digits.

Examples

“145 is a factorion because 1! + 4! + 5! = 1 + 24 + 120 = 145.”

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

factorisation factorist factorizability Factorization Factorizations factorizer

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