Using the prime factor method, find the L.C.M of 14 ,21 and 98
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14,21 and 98
By using prime factor method,L.C.M. of 14,21 and 98 are given below
Prime factor of 14=2×7
Prime factor of 21=3×7
Prime factor of 98=2×7×7
∴L.C.M.=2×3×7×7
=294
By using common division method, L.C.M. of 14,21 and 98 are given below
2 14 21 98
3 7 21 49
7 7 7 49
7 1 1 7
1 1 1
∴L.C.M.=2×3×7×7
=294
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