Table of Contents

## What is the greatest common factor of 24 and 40?

8

Answer: GCF of 24 and 40 is 8.

## What are the greatest factors of 16 and 40?

The GCF of 16 and 40 is 8. To calculate the greatest common factor of 16 and 40, we need to factor each number (factors of 16 = 1, 2, 4, 8, 16; factors of 40 = 1, 2, 4, 5, 8, 10, 20, 40) and choose the greatest factor that exactly divides both 16 and 40, i.e., 8.

**What is the greatest common factor?**

The greatest common factor (GCF) of a set of numbers is the largest factor that all the numbers share. For example, 12, 20, and 24 have two common factors: 2 and 4. The largest is 4, so we say that the GCF of 12, 20, and 24 is 4.

**What are multiples of 16 40?**

The LCM of 16 and 40 is 80. To find the least common multiple of 16 and 40, we need to find the multiples of 16 and 40 (multiples of 16 = 16, 32, 48, 64 . . . . 80; multiples of 40 = 40, 80, 120, 160) and choose the smallest multiple that is exactly divisible by 16 and 40, i.e., 80.

### What are all the factors of 16?

Factors of 16 are 1, 2, 4, 8, and 16.

### Is the correct answer 4 times older than X?

The language used in the statement of the problem makes it impossible to know what the right answer is. The phrase “4 times older than” should NEVER be used in the statement of a math problem. If one person’s age is x, then the correct interpretation of “4 times OLDER THAN x” is x, plus 4 more times x, or x+4x=5x.

**Which is an example of an age problem?**

Age Problems Involving More Than One Person. Example: John is twice as old as his friend Peter. Peter is 5 years older than Alice. In 5 years, John will be three times as old as Alice. How old is Peter now?

**What was my father’s age 5 years ago?**

Question 1183090: My father’s age 5 years ago plus twice my age now gives 65. My age 5 years ago plus three times my father’s age now gives 130. What is my father’s age.

## What’s the correct answer to the problem 5x = 40?

Kim’s age is 5x=40; her daughter’s age is 16. Kim’s age 6 years from now will be 40+6=46. You can put this solution on YOUR website!