Question

Find the greatest number of 4 digit which is divisible by 12,30,48,80

Answer 1

Answer:

Step-by-step explanation:

First we will find LCM of 40,48,60

40=2×2×2×5=23×5

48=2×2×2×3=23×3

60=2×2×3×5=22×3×5

LCM(40,48,60)=23×3×5

LCM(40,48,60)=120

The's number will be multiple of 120

The Greatest 4-digit number is 9999,but it is not divisible by any of these numbers

The Greatest number divisible by 120=9999-remainder(9999/120)

9999/120 gives remainder 39

Therefore, number is 9999–39=9960

Answer is 9960

Answer 2

find the grassland number of 4 digit which is divisible by 12:30 4880