Question

find the greatest number of Five digit which is exactly division by 20 24 35 45

Answer 1

20 = 2² x 5

24 = 2³ x 3

35 = 5 x 7

45 = 3² x 5

LCM = 2³ x 3² x 5 x 7 = 2520

Greatest 5 digit number = 99999

9999 ÷ 2520 = 39 remainder 1719

Greatest 5 digit number that can divided by 2520 = 39 x 2520 = 98280

Answer: 98280