すくなくとも
at least
Take the smallest figure you could possibly get away with and it is still two weeks. The same すくない as few, with とも on the end. That is the floor, not the estimate: すくなくとも.
せめて is at least as in if nothing else. 少なくとも puts a floor under a number. At least is not at last: やっと and ようやく are at last.
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