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What are the greatest common factor of 18 and 405 and how did you get it?
Updated: 8/20/2019
Wiki User
∙ 12y agoBest Answer
Factor them.
2 x 3 x 3 = 18
3 x 3 x 3 x 3 x 5 = 405
Select the common factors.
3 x 3 = 9, the GCF
Wiki User
∙ 12y agoThis answer is:
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