Talk:2023 AMC 12B Problems/Problem 15
How can E be the right answer since when the gcb(210,c) is 1, gcb(a,14) and gcb(b,15) have to be 1. The relationship between them should be must, not or. Or do I made a mistake? (:
How can E be the right answer since when the gcb(210,c) is 1, gcb(a,14) and gcb(b,15) have to be 1. The relationship between them should be must, not or. Or do I made a mistake? (:
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