A perfect number is a whole number such that when you add up all of the factors less than that number, you get that number.
There are only two perfect numbers less than 30. The first one is 6 since 1+2+3-6 next we see that 1 + 2 + 4 + 7 + 14=28 so 28 is the only other perfect number below 30.
Euclid proved that 2p−1(2p−1) is an even perfect number whenever 2p−1 is prime.
This works for 6 and 28 where p is a prime and is 2 and 3 respectively. Using this formula for p=5, the next perfect number is 24(25−1) = 496
The next one is p = 7 where we have 26(27−1) = 8128.
The next perfect number is 33550336 we get this with the prime 13.
The two perfect numbers between 1 and 30 are: 6, 28
the answer is 1. there is only 1 perfect square beteen 30 and 40.
6 and 28
Here is a procedure that would do the job nicely: -- Make a list of all the perfect squares between 5 and 30. (Hint: They are 9, 16, 25, 36, and 49.) -- Find the sum by writing the numbers in a column and adding up the column.
-20
No. The only perfect numbers below 100 are 6 and 28.
The two perfect numbers between 1 and 30 are: 6, 28
No, there are no known perfect numbers between 1 and 30. The only perfect numbers that have been discovered are 6, 28, 496, and 8128.
6 and 28
There are no perfect numbers between 20 and 30. Perfect numbers are numbers that are equal to the sum of their proper divisors, excluding the number itself. The perfect numbers within this range would be 28, but that is incorrect as 28 is not a perfect number.
perfect square numbers are 16 and 25
the answer is 1. there is only 1 perfect square beteen 30 and 40.
6 and 28
Two. 36, and 49 are perfect squares.
4
The prime numbers below 30 are 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29.
only 28 bro