Question

1215 and 21 ka h.c.f in l.c.m

Answer 1

Answer:

1215 & 21.

3|1215. 3|21.

3|405. 7|7.

3|135. 1.

3|45.

3|15.

5|5.

1.

LCM(1215,21)=3×3×3×3×3×5×3×7.

=25515.

HCF(1215)=3×3×3×3×3×5.

HCF(21)=3×7.

HCF(1215,21)=3.

I think this is your answer.