**Question 1:**
What is LCM (the least common multiple) of $4$
and $5$
?

**Question 2:**
What is LCM of $5$
and $10$
?

**Question 3:**
What is LCM of $8$
and $6$
?

**Question 4:**
Write $32$
as a product of prime numbers

**Question 5:**
Write $40$
as a product of prime numbers

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