Page 9 - ln2-6

LCM by Common Division

Method

 Step 4:We continue the process  Example -2: Find

of step 2 and step 3 until all co- least common

prime numbers are left in the multiple (L.C.M) of

last row. 12, 30 and 42 by

 Step 5: We multiply all the prime division method.

numbers by which we have

divided and the co-prime

numbers left in the last row. This

product is the least common

multiple of the given numbers.

 LCM of 12, 14, 30= 2x2x3x5x7=

420