Table of Contents

## What are the sum of 28?

56

The sum of all factors of 28 is 56. Its Prime Factors are 1, 2, 4, 7, 14, 28 and (1, 28), (2, 14) and (4, 7) are Pair Factors.

## What has a sum of 9?

Number | Repeating Cycle of Sum of Digits of Multiples |
---|---|

8 | {8,7,6,5,4,3,2,1,9} |

9 | {9,9,9,9,9,9,9,9,9} |

10 | {1,2,3,4,5,6,7,8,9} |

11 | {2,4,6,8,1,3,5,7,9} |

**What is the sum of 28 and the difference of 4?**

2 Answers. The numbers are 16and12.

**What is the sum of 29 and the difference of 5?**

17 and 12

According to second given condition, Difference of two number is 5. The two number having sum 29 and difference 5 are 17 and 12.

### What two prime numbers have a sum of 28?

(5 and 23 are primes that sum to 28, an even number.)

### Is 28 a perfect number?

Perfect number, a positive integer that is equal to the sum of its proper divisors. The smallest perfect number is 6, which is the sum of 1, 2, and 3. Other perfect numbers are 28, 496, and 8,128.

**Why is 9 special?**

It is the first composite lucky number, along with the first composite odd number and only single-digit composite odd number. 9 is the only positive perfect power that is one more than another positive perfect power, by Mihăilescu’s Theorem. 9 is the highest single-digit number in the decimal system.

**What is the sum of 9 and the difference is 1?**

The two numbers with the sum of 9 and difference of 1 is 5 and 4. Explanation: Let the two numbers be x and y.

## What is the sum of 24?

The sum of all factors of 24 is 60 and its factors in Pairs are (1, 24), (2, 12), (3, 8), and (4, 6). What are Factors of 24?

## What is the sum and difference?

SUM – The sum is the result of adding two or more numbers. DIFFERENCE – The difference of two numbers is the result of subtracting these two numbers. QUOTIENT – The quotient of two numbers is the result of the division of these numbers.

**What is the sum of 22 and the difference of 6?**

The answer is 14 and 8!

**What has a sum of 40 and a difference of 10?**

Since we are looking for two number that work with BOTH parts of the question, the correct answer is 25 and 15.