1, 2, 4, 5, 8, 10, 20, 40
1*40, 2*20, 4*10, 5*8
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All factors: 1, 2, 4, 13, 26, 52
-- List all the factors of the first number.-- List all the factors of the second number.-- Find any factors that appear on both lists.-- The highest one of those is the HCF of the two original numbers.
The lowest common factor of 140, 150, and 180 is 10. To find the lowest common factor, you can first find the prime factors of each number (140 = 2^2 * 5 * 7, 150 = 2 * 3 * 5^2, 180 = 2^2 * 3^2 * 5). Then, identify the common prime factors and multiply them together. The highest common factor of these numbers is 10, as it is the largest number that can evenly divide all three numbers without leaving a remainder.
The median as an average this is found by putting all the numbers in numerical order from lowest to highest the number in the middle of the list is the median. For example in the list 3,5,6,9,10,11,12 the number 9 is the median.
the lowest is 10, the highest is 99...