GCD

(the database of solved problems)

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

Select category

ID	Problem	Count
151	Find Greatest Common Divisor of 5 and 7, using prime factorization.	261
152	Find Greatest Common Divisor of 168 and 10, using prime factorization.	259
153	Find Greatest Common Divisor of 2 and 16, using prime factorization.	257
154	Find Greatest Common Divisor of 10 and 5, using prime factorization.	256
155	Find Greatest Common Divisor of 54 and 24, using prime factorization.	256
156	Find Greatest Common Divisor of 30 and 6, using prime factorization.	253
157	Find Greatest Common Divisor of 14 and 49, using prime factorization.	253
158	Find Greatest Common Divisor of 75 and 90, using prime factorization.	253
159	Find Greatest Common Divisor of 48 and 12, using prime factorization.	250
160	Find Greatest Common Divisor of 96 and 20, using prime factorization.	248
161	Find Greatest Common Divisor of 75 and 10, using prime factorization.	245
162	Find Greatest Common Divisor of 39 and 42, using prime factorization.	245
163	Find Greatest Common Divisor of 16 and 6, using prime factorization.	245
164	Find Greatest Common Divisor of 9 and 25, using prime factorization.	244
165	Find Greatest Common Divisor of 12 and 2, using prime factorization.	243
166	Find Greatest Common Divisor of 170 and 2, using prime factorization.	243
167	Find Greatest Common Divisor of 11 and 11, using prime factorization.	242
168	Find Greatest Common Divisor of 111 and 63, using prime factorization.	240
169	Find Greatest Common Divisor of 28 and 6, using prime factorization.	240
170	Find Greatest Common Divisor of 22 and 24, using prime factorization.	239
171	Find Greatest Common Divisor of 27 and 45, using prime factorization.	239
172	Find Greatest Common Divisor of 38 and 10, using prime factorization.	239
173	Find Greatest Common Divisor of 20 and 5, using prime factorization.	238
174	Find Greatest Common Divisor of 26 and 4, using prime factorization.	238
175	Find Greatest Common Divisor of 18 and 3, using prime factorization.	238
176	Find Greatest Common Divisor of 39 and 90, using prime factorization.	238
177	Find Greatest Common Divisor of 18 and 6, using prime factorization.	237
178	Find Greatest Common Divisor of 3 and 21, using prime factorization.	236
179	Find Greatest Common Divisor of 10 and 15, using prime factorization.	236
180	Find Greatest Common Divisor of 2 and 10, using prime factorization.	235
181	Find Greatest Common Divisor of 12 and 4, using prime factorization.	233
182	Find Greatest Common Divisor of 7 and 12, using prime factorization.	232
183	Find Greatest Common Divisor of 10 and 6, using prime factorization.	230
184	Find Greatest Common Divisor of 71 and 71, using prime factorization.	230
185	Find Greatest Common Divisor of 28 and 64, using prime factorization.	230
186	Find Greatest Common Divisor of 80 and 110, using prime factorization.	230
187	Find Greatest Common Divisor of 60 and 3, using prime factorization.	228
188	Find Greatest Common Divisor of 40 and 5, using prime factorization.	227
189	Find Greatest Common Divisor of 82 and 12, using prime factorization.	227
190	Find Greatest Common Divisor of 44 and 4, using prime factorization.	226
191	Find Greatest Common Divisor of 36 and 3, using prime factorization.	226
192	Find Greatest Common Divisor of 25 and 15, using prime factorization.	225
193	Find Greatest Common Divisor of 24 and 36, using prime factorization.	225
194	Find Greatest Common Divisor of 7 and 28, using prime factorization.	223
195	Find Greatest Common Divisor of 20 and 2, using prime factorization.	222
196	Find Greatest Common Divisor of 50 and 10, using prime factorization.	221
197	Find Greatest Common Divisor of 6 and 20, using prime factorization.	220
198	Find Greatest Common Divisor of 3 and 63, using prime factorization.	220
199	Find Greatest Common Divisor of 15 and 40, using prime factorization.	220
200	Find Greatest Common Divisor of 6 and 24, using prime factorization.	219