231 rounds to:
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200
It is 200 because 30 is less than 50
Pairs of positive integer factors of 231 are: 1 x 231 = 231 3 x 77 = 231 7 x 33 = 231 11 x 21 = 231 And their reverses.
y2 = 231*231 = 53361
Least Common Multiple (LCM) for 7 231 is 231.