Question

Find the least number that is divisible by all numbers between 1 and 10 [both inclusive]

Answer 1

we can exclude 10

2=2

3=3

4=2×2=2²

5=5

6=2×3

7=7

8=2×2×2=2³

9=3×3=3²

10=2×5

Now take the highest power of eavey number.

2³,3²,5,7=2×2×2×3×3×5×7=2520