1981
natural number
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1981
Summary
1981 is a positive integer[1].
Key Facts
- 1981's instance of is recorded as positive integer[2].
- 1981's instance of is recorded as odd number[3].
- 1981's instance of is recorded as semiprime[4].
- 1981's instance of is recorded as composite number[5].
- 1981's Commons category is recorded as 1981 (number)[6].
- 1981's numeric value is recorded as {'amount': '+1981'}[7].
- 1981's code is recorded as MCMLXXXI[8].
- 1981's prime factor is recorded as 7[9].
- 1981's prime factor is recorded as 283[10].
- 1981's maintained by WikiProject is recorded as WikiProject Mathematics[11].
- 1981's number of decimal digits is recorded as {'amount': '+4'}[12].
Body
Definition and Type
Recorded instance of include positive integer[2], odd number[3], semiprime[4], and composite number[5].