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Pronunciation varies by accent · noun
(mathematics) A number that is equal to the sum of the factorials of its digits..
145 is a factorion because 1! + 4! + 5! = 1 + 24 + 120 = 145.
Use factorion when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Factorion means (mathematics) A number that is equal to the sum of the factorials of its digits..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
145 is a factorion because 1! + 4! + 5! = 1 + 24 + 120 = 145.
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