Practice30Create account

How many odd positive divisors does 2160 have?

Competition practicePermutations & Combinations
  • A8
  • B40
  • C32
  • D10

Step-by-Step Solution

. An odd divisor uses no 2: . (40 counts all divisors.)
Answer: A) 8

Master this topic in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Permutations & Combinations practice questions

More Permutations & Combinations practice

Digits may repeat. How many 4-digit numbers are divisible by 5?How many arrangements of the letters of PROPORTION are possible?From 6 boys and 4 girls, 4 children are chosen so that there are more girls than boys.…Eight lamps stand in a row. Exactly 3 are to be switched on so that no two lit lamps are…Four flags of different colours are available. A signal uses at least 2 of them hoisted…