Question

a) find the
find the least
number diuisible by 15, 20,24,32and 36.​

Answer 1

Answer:

to find the least number divisible by these terms we should find the lcm of these

lcm of 15,20,24,32,36=1440

so the least number divisble by these numerals is 1440

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Answer 2

We need to find LCM of 15, 20,24,32 and 36.

Using Prime Factorisation Method,

15=3×5

20=2×2×5

24=2×2×2×3

32=2×2×2×2×2

36=2×2×3×3

LCM of 15, 20,24,32 and 36=2×2×2×2×2×3×3×5=1440

Therefore, required number is 1440 .