Which of the following numbers is divisible by each one of 3, 7, 9 and 11?
2019
Which of the following numbers is divisible by each one of 3, 7, 9 and 11?
- A.
7911
- B.
37911
- C.
639
- D.
2079
Attempted by 79 students.
Show answer & explanation
Correct answer: D
A number divisible by 3, 7, 9, and 11 must be divisible by their LCM, 3 x 7 x 9 x 11 / 3 = 693. Among the options, 2079 = 693 x 3, so it is divisible by all four.