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My answer :
3 numbers = 5, 60, and 90
How I found the numbers trial and error... I used my imagination of thinking any random 3 number which the gcf is 5... Started with 15,5,10... But so low lcm so I tried and tried until I get NEAR answer... 5, 25, 45 and the lcm is 175... I think of two numbers that the lcm is 180 I think 60 and 90 lcm will be 180... So I just add 5 in the list and it turned put to be the answer :)
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