### What is the greatest common factor of 155?

The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers. Since 155 is a single number, you could say that it shares all of its factors with itself. So the greatest factor of 155 is 155

### What is the greatest common factor of 85 and 155?

The GCF of 85 and 155 is 5. A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that both numbers have in common. One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them. The factors of 85 are 1, 5, 17, and 85…

### What are the factors and prime factors of 155?

155 is a composite number because it has factors other than 1 and itself. It is not a prime number. The 4 factors of 155 are 1, 5, 31, and 155. The factor pairs of 155 are 1 x 155 and 5 x 31. The proper factors of 155 are 1, 5, and 31 or, if the definition you are using excludes 1, they are 5 and 31. The prime factors of 155 are 5…