Fermat pseudoprime
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English
Noun
Fermat pseudoprime (plural Fermat pseudoprimes)
- (mathematics) With respect to an integer base b, with b > 1, a composite integer n such that bn-1 is congruent to one modulo n.
- 341 is a Fermat pseudoprime to the base two.
Usage notes
When no base is specified, base two (binary) is usually assumed; for example, "341 is a Fermat pseudoprime to the base two" can be simplified to "341 is a Fermat pseudoprime."