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The Number 1980: Properties and Meanings
Prime Factors of 1980=2x2x3x3x5x11.1980 is the number of ways to fold a 2x4 rectangle of stamps.
The Year 1980 AD
In the year 1980 AD The hepatitis-B vaccine was invented.
The Main Number Sections:
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Number Articles | Higher Numbers | Random Number
0 - 500 | 501 - 1000 | 1001 - 1500 | 1501 - 2000 | 2001 - 2500
Number Articles | Higher Numbers | Random Number