Primes Factors

Random Science or Numbers Quiz

Can you name the largest prime factor in each number?

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NumberLargest Prime Factor
189
117
129
153
179
199
91
141
93
173
97
NumberLargest Prime Factor
137
133
101
197
113
161
157
181
163
107
109
NumberLargest Prime Factor
207
151
123
187
159
139
103
203
127
171
149
NumberLargest Prime Factor
201
119
209
177
167
143
131
191
147
193
183

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