There are 3 colored ribbons, the lengths of which are 12 meters, 8 meters and 10 meters respectively. If these 3 colored ribbons are to be cut into small pieces of the same length without any remaining pieces, how many meters is the longest of each colored ribbon?
有3根彩带，分别长12米、8米和10米，要把这3根彩带剪成同样长的小段且没有剩余，每条彩带最长几米？
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