SOLUTION: What is the least positive integer in which fourth root (98k) is an integer?

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Question 758538: What is the least positive integer in which fourth root (98k) is an integer?
Answer by Alan3354(69443) About Me  (Show Source):
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What is the least positive integer in which fourth root (98k) is an integer?
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98 = 2*7*7
k+=+2%5E4%2A7%5E4%2F%282%2A7%2A7%29
k+=+2%5E3%2A7%5E2+=+392