Find the HCF of 135 and 165 prime factor method
The GCF is 15.
The Highest Common Factor (HCF) of 210 and 165 is the largest positive integer that divides both numbers without leaving a remainder. To find the HCF, you can use the Euclidean algorithm, which involves dividing the larger number by the smaller number and then using the remainder as the new divisor until the remainder becomes zero. In this case, the HCF of 210 and 165 is 15.
The highest common factor (HCF) of 25 and 135 is 5. To find the HCF, you need to identify the common factors of both numbers - 25 and 135. The factors of 25 are 1, 5, and 25, while the factors of 135 are 1, 3, 5, 9, 15, 27, 45, and 135. The highest common factor among these factors is 5.
The GCF is 5.
27/40 67.5/100 = 135/200 (multiply top and bottom by 2 to make whole numbers) = 27/40 (divide top and bottom by hcf(135, 200) = 5)