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A perfect number is a positive integer that is equal to the sum of its proper divisors (excluding itself). The first four perfect numbers are 6, 28, 496, and 8128. These are the only known perfect numbers less than 50. Perfect numbers are rare and have special properties in number theory.
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JordanAh, perfect numbers are quite special in the world of mathematics. There are only a few known perfect numbers, and they have a fascinating harmony to them. Less than 50, we have two perfect numbers: 6 and 28. Each of them is the sum of their divisors, creating a beautiful balance in the world of numbers.
6 and 28
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Are prime numbers more or less common than perfect squares?
Any number squared except 0 is a perfect square so it follows that prime numbers are less common than perfect squares.
What are numbers less than zero called if numbers less than one are decimals?
Numbers less than zero are "negative numbers".
What are two perfect integers less than 30?
Perfect numbers are numbers which equal the sum of their divisors. There are two numbers which fulfill this classification which are less than 30:1 + 2 + 3 = 61 + 2 + 4 + 7 + 14 = 28Perfect numbers can be calculated with the following formula:2n*(2(n+1)-1)For example, the first perfect number is: 21*(22-1) = 6The second perfect number is: 22*(23-1) = 28
How many numbers are less than 900?
There are 899 numbers that are less than 900
What numbers less than 40 list each pair of numbers that has a greatest common factor of 12?
12 and 24 12 and 36 24 and 36
