asked 219k views
4 votes
Abigail says that all the numbers ending 1 are prime. Is Abigail correct or incorrect

asked
User Nullptr
by
8.5k points

2 Answers

3 votes
incorrect.......................
answered
User Rahul Yadav
by
7.6k points
4 votes
Incorrect.
Go through the numbers and you'll find un-prime numbers ending in 1:
21, 81, 121,...

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