The greatest common factor (GCF or GCD or HCF) of a set of whole numbers is the largest positive integer that divides evenly into all numbers with zero remainder. For example, for the set of numbers 18, 30 and 42 the GCF = 6.
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.
To find the GCF of a set of numbers, list all the factors of each number. The greatest factor appearing on every list is the GCF. For example, to find the GCF of 6 and 15, first list all the factors of each number. Because 3 is the greatest factor that appears on both lists, 3 is the GCF of 6 and 15.
The greatest common factor (GCF) is the largest number that is a factor of two or more numbers, and the least common multiple (LCM) is the smallest number that is a multiple of two or more numbers.
least common multiple
And you multiply it by both numbers that you have at the bottom here and at the bottom we have a 2MoreAnd you multiply it by both numbers that you have at the bottom here and at the bottom we have a 2 and a 3. So we are going to multiply our greatest common factor of 4 by 2.
Explanation: We use greatest common factors all the time with fractions, and as fractions are used a lot in everyday life, this makes GCF very useful! By finding the GCF of the denominator and numerator, you can then successfully simplify a fraction or ratio. E.g. We can simplify 3045 by knowing that its HCF is 15 .
And 63 7 can be divided into 42 6 equal times and 7 can be divided into 63 9 equal times. Now weMoreAnd 63 7 can be divided into 42 6 equal times and 7 can be divided into 63 9 equal times. Now we have to check to see if 7 is our greatest common factor or only a common factor.
Six interesting greatest common factor word problems you can give to your students to tease them. A cell phone company produces 40 defective phones out of every 5000 phones. Another cell phone company produces 30 defective phones out of every 6000 phones.
We Use the 4-step plan in solving problems involving GCF and LCM of two given numbers. Understand, Plan, Solve, and Check and Look Back.
To find the common factors of two numbers, you first need to list all the factors of each one and then compare them. If a factor appears in both lists then it is a common factor.