Question

which is the smallest number that exactly divisible by 15,20,35​

Answer 1

Answer:

5

Step-by-step explanation:

5 is the smallest number is divisible by 15

5 is the smallest number is divisible by 20

5 is the smallest number is divisible by 36

Answer 2

Answer:

420

Step-by-step explanation:

According to the question,

We need to find the smallest number that is exactly divisible by 15,20,35​.

To find the smallest number we need to find an LCM of 15,20,35​.

Because LCM is the least common multiply which is divisible by 15,20,35​.

LCM of 15,20,35​ is-

$15=3X5\\\\20=2X2X5\\\\35=5X7$

so,

$LCM= 2X2X3X5X7\\\\LCM=12X35\\\\LCM=420$

Hence, 420 is the smallest number that is exactly divisible by 15,20,35​.