Question

Find the least no. That is divisible by all the nos.between 1and 10(both inclusive)

Answer 1

Factors of the numbers from 1 to 10,
1=1
2=1×2
3=1×3
4=1×2×2
5=1×5
6=1×2×3
7=1×7
8=1×2×2×2
9=1×3×3
10=1×2×5
The least number that is divisible by the numbers 1 to 10 is the LCM the numbers from 1 to 10 = LCM (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
=1×2×2×2×3×3×5×7=2520