Question: One lighthouse light flashes every 7 seconds, and a second lighthouse light flashes every 1 4 seconds. If they both flash at the same moment,

One lighthouse light flashes every 7 seconds, and a second lighthouse light flashes every 14 seconds. If they both flash at the same moment, how long will it be until they will flash together again?
seconds
One lighthouse light flashes every 7 seconds, and

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