In [Problem E](https://codeforces.me/contest/2029/problem/E) I got a wrong answer on this test:↵
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Input↵
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1↵
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2↵
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2137 333979↵
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Output↵
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2137↵
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My answer is -1, and I couldn't understand why 2137 is a valid solution knowing that 2137 is prime and 331 * 1009 = 333979.↵
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I appreciate it if someone could give me a good explanation for this test.
↵
Input↵
↵
1↵
↵
2↵
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2137 333979↵
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Output↵
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2137↵
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My answer is -1, and I couldn't understand why 2137 is a valid solution knowing that 2137 is prime and 331 * 1009 = 333979.↵
↵
I appreciate it if someone could give me a good explanation for this test.
