Question

Find the least common multiple ( LCM) by listing the multiples .

$7$ and $11$

Answer 1

Given, the numbers are $7$ and $11$

The multiples of $7$ are $=7,14,21,28,35,42,49,56,63,\mathbf{70},77,84,91,.......$

The multiples of $11$ are $=11,22,33,44,55,66,\mathbf{}\mathbf{77},88,99,........$

The common multiples of $7$ and $11$ are $=77,154,231.....$

Hence , the required LCM of $7$ and $11$ is $77$ .