diff --git a/transpose.c b/Matrix/transpose.c
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rename from transpose.c
rename to Matrix/transpose.c
diff --git a/euclidGCD.cpp b/NumberTheory/euclidGCD.cpp
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rename to NumberTheory/euclidGCD.cpp
diff --git a/lcm.cpp b/NumberTheory/lcm.cpp
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rename to NumberTheory/lcm.cpp
diff --git a/modularExponentiation.cpp b/NumberTheory/modularExponentiation.cpp
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rename from modularExponentiation.cpp
rename to NumberTheory/modularExponentiation.cpp
diff --git a/s.c b/NumberTheory/s.c
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rename to NumberTheory/s.c
diff --git a/series.c b/NumberTheory/series.c
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rename to NumberTheory/series.c
diff --git a/sieve.cpp b/NumberTheory/sieve.cpp
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rename to NumberTheory/sieve.cpp
diff --git a/star.c b/Patterns/star.c
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diff --git a/extract_word.c b/Strings/extract_word.c
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rename from extract_word.c
rename to Strings/extract_word.c