Answer
10
Work Step by Step
$30=\underline2\times3\times\underline5$
$50=\underline2\times5\times\underline5$
$200=\underline2\times2\times2\times5\times\underline5$
$GCF=2\times5=10$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.