Step-by-step explanation for part 1:
We know that:
Since they are divisible by 4, we can factorize them.
Step-by-step explanation for part 2:
We know that:
Since they are divisible by 10, we can factorize them.
Step-by-step explanation for part 3:
We know that:
Since they are divisible by 6, we can factorize them.