Question

Find LCM of 4,12,14 with two methods?
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Answer 1

FIRST METHOD

factorise all 3 numbers together

then multiply the factors

LCM=2×2×3×7=84

SECOND METHOD

factorise 4,12,14 one by one

so,4=2×2

12=2×2×2

14=2×7

LCM=2×2×3×7

=84