Which of the following numbers is a perfect number: 20, 24,28, 32.

A number that is equal to the sum of all its factors other than itself is a perfect number.

Example: 6 = 1+2+3

Therefore six is a perfect number.

This is from Maths Mate Level 5.1 Sheet 6
in Pre-Algebra Answers by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

it is 28.
by

Related questions

1 answer
all 20-30 perfect numbers
asked Jul 15, 2014 in Other Math Topics by bob | 561 views
1 answer
what are common factors of 24, 28, 32
asked Jan 28, 2013 in Statistics Answers by anonymous | 1.7k views
2 answers
which number comes next in this series 19,24,21,23,28,24
asked Aug 8, 2013 in Other Math Topics by joe | 1.8k views
4 answers
Which fractions are equivalent to 28/32?
asked May 8, 2012 in Algebra 1 Answers by anonymous | 6.5k views
1 answer
Whats The Variance Of 6,12,20,24,28
asked Feb 15, 2013 in Statistics Answers by anonymous | 712 views
1 answer
which is greater 15/24 or 28/40
asked Sep 30, 2013 in Algebra 1 Answers by the yolo king | 657 views
1 answer
arithmetic mean for 15,20,24,30,32
asked Mar 4, 2013 in Algebra 2 Answers by anonymous | 626 views
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!

Most popular questions within the last 3000 days

  1. 50+50-25X0+2+2= (19)
  2. it takes 10 road workers 5 days to complete a road repair when working 2 hours a day.Working at the same pace,how many days will it take 2 people working 5 hours a day to finish it? (3)
  3. complete the following. 825 use each digit once .make the two smallest 3 digit numbers and two largest 3-digit number (2)
  4. Solve 15 -1(12÷4+1)? (4)
  5. 8:4(5+2) (3)

Most popular tags

87,551 questions
99,638 answers
2,417 comments
442,544 users