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# What is the sum of the proper factors of 75?

Updated: 11/1/2022

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Q: What is the sum of the proper factors of 75?
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### What is the sum of the proper factors of 256?

154 is the sum of the proper factors of 256.

-65

### What is the term for equal to the sum of its proper factors?

A perfect number is the term for a number that is equal to the sum of its proper divisors. Be careful not to confuse that with proper factors. Proper divisors include 1 but not the number itself. Proper factors don't include either I or the original number.

### Equal to the sum of its proper factors?

A perfect number.

2,340

### What does Abundant Deficient and perfect mean?

Abundant is a number for which the sum of all its proper factors is greater than the number itself. Deficient is a number for which the sum of all its proper factors is less than the number itself. Perfect is a number for which the sum of all its proper factors is the number itself.

### What is the sum of all its proper factors of 5?

Zero. 5 is a prime so its only factors are 1 and 5. It, therefore, has no proper factors.

### What does abundant mean in proper factors?

an abundant number is less than the sum of its proper divisors

### The sum of the proper factors of 4 is less than 4 List all the numbers through 50 for which the sum of its proper factors is one less than the number itself?

The numbers for which the sum of its proper factors is 1 less than the number is the powers of 2; less than 50 these are: 2, 4, 8, 16 &amp; 32.

### What is the sum of the proper factors of 50?

2 + 5 + 10 + 25 = 42

### Is 75 perfect abundant or deficient?

A perfect number is one with factors (apart from itself) that sum to give the original number. An abundant number is one where this sum is greater than the original number. A deficient number is one where the sum is less than the original number. The factors of 75 are 1, 3, 5, 15 and 25. The sum of these numbers is 49. Thus 75 is a deficient number.

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