+671 is a [natural number](/wiki/Natural_number) that follows 670 and precedes 672. It is a [semiprime](/wiki/Semiprime), being the product of two distinct [prime numbers](/wiki/Prime_number), 23 and 29.
+## See also
+- [Number](/wiki/Number)
+- [Integer](/wiki/Integer)
+- [Mathematics](/wiki/Mathematics)
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