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Anonymous
Factor them.5 x 5 = 252 x 3 x 3 x 5 = 90Select the common factor.The GCF is 5.Combine the factors, eliminating duplicates.2 x 3 x 3 x 5 x 5 = 450, the LCMCheck it.25 x 90 = 2250450 x 5 = 2250It checks.
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The LCM is 1800.
Their gcf is 15 .
The Least Common Multiple (LCM) for 25 90 12 8 is 1,800.
LCM for 45 and 90 is 90.
The LCM is 90.