Primes Factors

Random Science or Numbers Quiz

Can you name the largest prime factor in each number?

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

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Created Oct 30, 2009Editor's PickReportNominate
Tags:Numbers, factor, largest, prime