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The greatest common factor of 15 and 55 is 5.
Oh, dude, the Highest Common Factor (HCF) of 20 and 55 is 5. It's like the cool kid that hangs out with both 20 and 55 without any drama. So yeah, 5 is the HCF, keeping things chill between 20 and 55.
To find the highest common factor (HCF) of 55 and 155, we first need to list the factors of each number. The factors of 55 are 1, 5, 11, and 55. The factors of 155 are 1, 5, 31, and 155. The highest common factor is the largest number that both lists share, which in this case is 5. Therefore, the highest common factor of 55 and 155 is 5.
The factors of 165 are: 1, 3, 5, 11, 15, 33, 55, 165.The factors of 225 are: 1, 3, 5, 9, 15, 25, 45, 75, 225.The common factors are: 1, 3, 5, 15.The Greatest Common Factor (GCF) is: 15
55 - 1, 5, 11, 55 115 - 1, 5, 23, 115 the HCF is 5