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What are perfect divisors?
An example - the divisors of 28 are 1 -2 - 4 - 7 - 14 and 28. In other words 1+2+4+7+14 = 28
What goes into 28 and 70?
The numbers that go into both 28 and 70 are known as their common divisors. The common divisors of 28 are 1, 2, 4, 7, 14, and 28, while the common divisors of 70 are 1, 2, 5, 7, 10, 14, 35, and 70. The common divisors of both numbers are 1, 2, 7, and 14. Hence, the numbers that go into both 28 and 70 are 1, 2, 7, and 14.
How is 20 a perfect number?
It isn't a perfect number.A perfect number is a number which is the sum of its proper divisors (including 1, but excluding itself).The divisors of 20 are 1, 2, 4, 5, 10.1 + 2 + 4 + 5 + 10 = 22 => 20 is not a perfect number.An example of a perfect number is 28:The divisors of 28 are 1, 2, 4, 7, 141 + 2 + 4 + 7 + 14 = 28 => 28 is a perfect number.
What number goes into 28 evenly?
The numbers that go into 28 evenly are its divisors: 1, 2, 4, 7, 14, and 28. Each of these numbers divides 28 without leaving a remainder. For example, 28 divided by 4 equals 7, which is an integer.
What are the divisors of 84?
1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
What are the divisors of 28?
The divisors of 28 are: 1, 2, 4, 7, 14, 28.
What are perfect divisors?
An example - the divisors of 28 are 1 -2 - 4 - 7 - 14 and 28. In other words 1+2+4+7+14 = 28
Divisor of 28?
28 has six divisors: 1, 2, 4, 7, 14, 28.
What are the 3 divisors of 56?
Actually, 56 has eight divisors: 1, 2, 4, 7, 8, 14, 28, 56.
What are all of the divisors of 56?
They are: 1, 2, 4, 7, 8, 14, 28, 56.
How is 20 a perfect number?
It isn't a perfect number.A perfect number is a number which is the sum of its proper divisors (including 1, but excluding itself).The divisors of 20 are 1, 2, 4, 5, 10.1 + 2 + 4 + 5 + 10 = 22 => 20 is not a perfect number.An example of a perfect number is 28:The divisors of 28 are 1, 2, 4, 7, 141 + 2 + 4 + 7 + 14 = 28 => 28 is a perfect number.
What are the divisors of 112?
1, 2, 4, 7, 8, 14, 16, 28, 56, 112.
What are the divisors of 280?
The divisors of 280 are: 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280.
What is the divisors of 140?
1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140.
What are the divisors of 84?
1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
What am I if I am a two digit number between 10 and 40 and the sum of all my divisors?
15
Is 812 divisible by 4?
812 is not divisible by 9. The divisors of 812 are 1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, and 812.
