Factor them.
5 x 5 = 25
2 x 3 x 3 x 5 = 90
Select the common factor.
The GCF is 5.
Combine the factors, eliminating duplicates.
2 x 3 x 3 x 5 x 5 = 450, the LCM
Check it.
25 x 90 = 2250
450 x 5 = 2250
It checks.
For 90, 25, 12 and 8 the LCM is: 1,800
450
The LCM is 900.
The LCM is 1800.
450
The GCF of 90 and 180 is 90.
The GCF is 30.
The LCM is: 450
Their gcf is 15 .
The Least Common Multiple (LCM) for 25 90 12 8 is 1,800.
The LCM is 90.
The LCM of these numbers is 90.