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The LCM is 231.
The LCM of 11 and 21 is 231
21 x 11 = 231 21 x11 ---- 21 +210 ---- 231
231
The GCF is 21.
21 of them because 231/11 = 21
it is 231.
The GCF is 21.
The composite factors of 231 are 21, 33, 77, 231
The HCF of 525 and 231 is 21
3*7*11 = 231
It is: 3*7*11 = 231