Problems on H.C.F and L.C.M
What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30 ?

540
630
770
420

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Problems on H.C.F and L.C.M
Find the HCF of of 0.36, 0.48, 0.72 and 2.4

0.12
0.8
0.16
0.4

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Problems on H.C.F and L.C.M
Find the H.C.F. of 513, 1134 and 1215.

27
63
58
42

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