Hi!
This is an exercise about least common multiple.
To find the least common multiple, first you'll need to factor these three numbers together.
![11,22,44 | \:2\\11, 11, 22 | \:2\\11, 11, 11 | \:11\\\:\:\:1, \:\:\:\:\:1,\:\: 1\\\\](https://img.qammunity.org/2022/formulas/mathematics/high-school/1adzav9j2wtpq6wkhnvdccyyn00qb0joyz.png)
Now that you know the prime numbers that divide 11, 22, and 44, we can calculate the least common multiple.
To do this, just multiply the (prime) numbers we found on the right side of the factorization:
![2^2\cdot 11 = 44](https://img.qammunity.org/2022/formulas/mathematics/high-school/11mxxvogheoxc4i6s08xcxzahqo4i0hjs5.png)
Then, the least common multiple of 11, 22 and 44 equals 44.
Hope this helps! :D