# Test: Factors I - Normal

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Question 1:   What is LCM (the least common multiple) of $4$ and $5$ ?
$15$
$12$
$20$
$10$
Question 2:   What is LCM of $5$ and $10$ ?
$50$
$10$
$20$
$5$
Question 3:   What is LCM of $8$ and $6$ ?
$32$
$48$
$40$
$24$
Question 4:   Write $32$ as a product of prime numbers
$8\cdot 4$
$2\cdot 2\cdot 2\cdot 4$
$2\cdot 2\cdot 2\cdot 2\cdot 2$
$4\cdot 4\cdot 2$
Question 5:   Write $40$ as a product of prime numbers
$5\cdot 8$
$2\cdot 2\cdot 3\cdot 5$
$2\cdot 2\cdot 6$
$2\cdot 2\cdot 2\cdot 5$
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