103k views
0 votes
Help Im begging Help !!!!!!!!! pls!!!!!

How many numbers less than 30 have an odd number of factors?

User Reneemarie
by
8.0k points

1 Answer

1 vote

Answer:

  • 5 numbers

--------------------------------

Only the perfect squares have odd number of factors.

Example

  • 1 ⇒ 1 One factor
  • 4 ⇒ 1, 2, 4 Three factors
  • 16 ⇒ 1, 2, 4, 8, 16 Five factors

Perfect squares less than 30 are

  • 1, 4, 9, 16, 25 - total 5 numbers
User Deepak Nirala
by
7.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories