Question

50 pointsss fast answer




lcm and hcf of 12, 13 and 21 by prime factorisation method​

Answer 1

Answer:

here hcf =1 &lcm also =1

as in 12,13 &21,,,1 is the highest common factor & the lowest common mulyiple

Answer 2

Answer:

L.C.M OF 12, 13, 21 is:-

12 = 1 × 2 × 2 × 3

13 = 1 × 13

21 = 1 × 3 × 7

L.C.M = 2 × 3 × 13 × 7 = 546 Ans.

H.C.F = 1 Ans.

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