Common factors of 72 and 80 are: 1, 2, 4, and 8.
The GCF is 8.
1, 2, 4 and 8
The prime factors of 80 are 2 and 5. For them to be common, they need to be compared to another set of prime factors.
The factors of 72 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72 The factors of 80 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80 ⇒ The common factors of 72 and 80 are: 1, 2, 4, 8,
One way to approach this is to look at the difference between 72 and 80, which is 8. The greatest common factor of two numbers cannot be larger than the difference between the two numbers. Since both 72 and 80 are divisible by 8, the greatest common factor is 8. Another way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72. The factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, and 80. The common factors are 1, 2, 4, and 8. Therefore, the greatest common factor is 8. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 72 are 2, 2, 2, 3, and 3. The prime factors of 80 are 2, 2, 2, 2, and 5. The prime factors in common are 2, 2, and 2, so the greatest common factor is 2 x 2 x 2 = 8.
80 factors to [2 2 2 2 5] 72 factors to [2 2 2 3 3] Common factors are [2 2 2] Common factors are {1 2 4 8} ■
The Least Common Multiple (LCM) for 72 80 is 720.
The Least Common Multiple (LCM) of 72 and 80 is 720.
The factors of 16 are 1, 2, 4, 8 and 16. For them to be common, they need to be compared to another set of factors.
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 32 are 1, 2, 4, 8, 16, and 32. The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72. The factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, and 80. The common factors are 1, 2, 4, and 8. Therefore, the greatest common factor is 8.
The common factors of 55 and 80 are 1 and 5