Question

whats the lcm for 126 and 30.

Answer 1

L.C.M rule :  .

To find  L.C.M of 126 and 30

Therefore the L.C.M of 126 and 30 is .

 

Comments

L.C.M of 126 and 30 is 630.

Answer 2

Write the prime factorization of each number.

126= 3*3*2*7 = 2¹*3²*7¹

30=2*3*5= 2¹*3¹*5¹

Multiply highest power of  each factor in the either number.

L.C.M =2¹*3²*5¹*7¹ 
            = 630

L.C.M of 126 and 30 is 630.