Question

what is the lcm of 1290 & 278​

Answer 1

i.) L.C.M. of 1290 is 2, 3, 5 and 43.

ii.)L.C.M. of 278 is 2 and 139.

Step-by-step explanation:

i.) 1290

2 l 1290

5 l 645

3 l 129

43 l 43

| 1

Factors of 1290 = 2 x 5 x 3 x 43

.: L.C.M. of 1290 is 2, 3, 5 and 43.

ii.) 278

2 l 278

139 l 139

I 1

Factors of 278 = 2 x 139

.: L.C.M. of 278 is 2 and 139.