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
201	Find Greatest Common Divisor of 3 and 21, using prime factorization.	170
202	Find Greatest Common Divisor of 48, 36 and 124, using repeated division.	169
203	Find Greatest Common Divisor of 12 and 2, using prime factorization.	169
204	Find Greatest Common Divisor of 49 and 42, using prime factorization.	169
205	Find Greatest Common Divisor of 2 and 22, using prime factorization.	168
206	Find Greatest Common Divisor of 7 and 28, using prime factorization.	168
207	Find Greatest Common Divisor of 12 and 4, using prime factorization.	167
208	Find Greatest Common Divisor of 45 and 21, using prime factorization.	167
209	Find Greatest Common Divisor of 60 and 3, using prime factorization.	167
210	Find Greatest Common Divisor of 10 and 6, using prime factorization.	166
211	Find Greatest Common Divisor of 50 and 24, using prime factorization.	166
212	Find Greatest Common Divisor of 36 and 3, using prime factorization.	165
213	Find Greatest Common Divisor of 10 and 15, using prime factorization.	165
214	Find Greatest Common Divisor of 22 and 2, using prime factorization.	165
215	Find Greatest Common Divisor of 30 and 42, using prime factorization.	164
216	Find Greatest Common Divisor of 16215 and 10915632, using prime factorization.	164
217	Find Greatest Common Divisor of 8 and 20, using prime factorization.	164
218	Find Greatest Common Divisor of 2025.	164
219	Find Greatest Common Divisor of 49 and 7, using prime factorization.	164
220	Find Greatest Common Divisor of 12 and 18, using prime factorization.	164
221	Find Greatest Common Divisor of 12 and 44, using prime factorization.	162
222	Find Greatest Common Divisor of 265 and 30, using prime factorization.	162
223	Find Greatest Common Divisor of 80 and 110, using prime factorization.	162
224	Find Greatest Common Divisor of 20 and 2, using prime factorization.	161
225	Find Greatest Common Divisor of 134 and 2, using prime factorization.	161
226	Find Greatest Common Divisor of 25 and 100, using prime factorization.	160
227	Find Greatest Common Divisor of 42 and 16, using prime factorization.	160
228	Find Greatest Common Divisor of 69 and 15, using prime factorization.	160
229	Find Greatest Common Divisor of 14 and 21, using prime factorization.	160
230	Find Greatest Common Divisor of 65 and 5, using prime factorization.	159
231	Find Greatest Common Divisor of 2026.	159
232	Find Greatest Common Divisor of 44 and 22, using prime factorization.	158
233	Find Greatest Common Divisor of 158 and 20, using prime factorization.	156
234	Find Greatest Common Divisor of 24 and 2, using prime factorization.	155
235	Find Greatest Common Divisor of 63777 and 9, using prime factorization.	155
236	Find Greatest Common Divisor of 30 and 5, using prime factorization.	154
237	Find Greatest Common Divisor of 9216 and 256, using prime factorization.	154
238	Find Greatest Common Divisor of 32 and 16, using prime factorization.	153
239	Find Greatest Common Divisor of 68 and 8, using prime factorization.	153
240	Find Greatest Common Divisor of 18 and 6, using prime factorization.	152
241	Find Greatest Common Divisor of 33 and 121, using prime factorization.	150
242	Find Greatest Common Divisor of 74 and 37, using prime factorization.	150
243	Find Greatest Common Divisor of 322 and 8925, using prime factorization.	150
244	Find Greatest Common Divisor of 11 and 55, using prime factorization.	149
245	Find Greatest Common Divisor of 88 and 18, using prime factorization.	148
246	Find Greatest Common Divisor of 4 and 18, using prime factorization.	147
247	Find Greatest Common Divisor of 10 and 10, using prime factorization.	146
248	Find Greatest Common Divisor of 34 and 8, using prime factorization.	146
249	Find Greatest Common Divisor of 120 and 360, using prime factorization.	146
250	Find Greatest Common Divisor of 70 and 80, using prime factorization.	145