GCD

(the database of solved problems)

All the problems and solutions shown below were generated using the GCD Calculator.

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ID	Problem	Count
151	Find Greatest Common Divisor of 39 and 42, using prime factorization.	237
152	Find Greatest Common Divisor of 12 and 3, using prime factorization.	236
153	Find Greatest Common Divisor of 170 and 2, using prime factorization.	233
154	Find Greatest Common Divisor of 22 and 24, using prime factorization.	233
155	Find Greatest Common Divisor of 18 and 4, using prime factorization.	232
156	Find Greatest Common Divisor of 28 and 6, using prime factorization.	230
157	Find Greatest Common Divisor of 2 and 16, using prime factorization.	230
158	Find Greatest Common Divisor of 16 and 4, using prime factorization.	229
159	Find Greatest Common Divisor of 48 and 12, using prime factorization.	229
160	Find Greatest Common Divisor of 75 and 10, using prime factorization.	227
161	Find Greatest Common Divisor of 71 and 71, using prime factorization.	227
162	Find Greatest Common Divisor of 75 and 90, using prime factorization.	226
163	Find Greatest Common Divisor of 111 and 63, using prime factorization.	225
164	Find Greatest Common Divisor of 96 and 20, using prime factorization.	223
165	Find Greatest Common Divisor of 39 and 90, using prime factorization.	223
166	Find Greatest Common Divisor of 60 and 3, using prime factorization.	222
167	Find Greatest Common Divisor of 28 and 64, using prime factorization.	222
168	Find Greatest Common Divisor of 44 and 4, using prime factorization.	221
169	Find Greatest Common Divisor of 27 and 45, using prime factorization.	219
170	Find Greatest Common Divisor of 30 and 6, using prime factorization.	219
171	Find Greatest Common Divisor of 9 and 25, using prime factorization.	219
172	Find Greatest Common Divisor of 12 and 18, using prime factorization.	218
173	Find Greatest Common Divisor of 10 and 5, using prime factorization.	218
174	Find Greatest Common Divisor of 11 and 11, using prime factorization.	215
175	Find Greatest Common Divisor of 16 and 6, using prime factorization.	214
176	Find Greatest Common Divisor of 26 and 4, using prime factorization.	213
177	Find Greatest Common Divisor of 82 and 12, using prime factorization.	212
178	Find Greatest Common Divisor of 25 and 15, using prime factorization.	210
179	Find Greatest Common Divisor of 6 and 24, using prime factorization.	209
180	Find Greatest Common Divisor of 27 and 18, using prime factorization.	209
181	Find Greatest Common Divisor of 38 and 10, using prime factorization.	209
182	Find Greatest Common Divisor of 12 and 2, using prime factorization.	209
183	Find Greatest Common Divisor of 24 and 36, using prime factorization.	208
184	Find Greatest Common Divisor of 7 and 12, using prime factorization.	208
185	Find Greatest Common Divisor of 3 and 63, using prime factorization.	206
186	Find Greatest Common Divisor of 18 and 6, using prime factorization.	205
187	Find Greatest Common Divisor of 2 and 10, using prime factorization.	205
188	Find Greatest Common Divisor of 242 and 8, using prime factorization.	203
189	Find Greatest Common Divisor of 22 and 10, using prime factorization.	202
190	Find Greatest Common Divisor of 32 and 20, using prime factorization.	201
191	Find Greatest Common Divisor of 15 and 40, using prime factorization.	201
192	Find Greatest Common Divisor of 3 and 21, using prime factorization.	200
193	Find Greatest Common Divisor of 51 and 36, using prime factorization.	200
194	Find Greatest Common Divisor of 10 and 15, using prime factorization.	200
195	Find Greatest Common Divisor of 46 and 2, using prime factorization.	200
196	Find Greatest Common Divisor of 84 and 75, using prime factorization.	198
197	Find Greatest Common Divisor of 50 and 10, using prime factorization.	198
198	Find Greatest Common Divisor of 10 and 6, using prime factorization.	197
199	Find Greatest Common Divisor of 7 and 28, using prime factorization.	197
200	Find Greatest Common Divisor of 40 and 5, using prime factorization.	197