<span>The answer is: 1, 2, 7, 14 . </span>_____________________________________________________ Explanation: ________________________________________________ FIrst, list all the factors of 42 (positive integers): ________________________________________________________ 1, 42 2, 21, 3, 14, 6, 7 _________________________________________________ Then list all the factors of 28 (positive integers): ____________________________________________________ <span> 1, 28 2, 14, 4, 7 </span>_____________________________________________________ Now, list all numbers that occur for BOTH the factors of "28" AND the factors of "42" _____________________________________________________ 1, 2, 7, 14 _____________________________________________________ The answer is: 1, 2, 7, 14 . _______________________________________________________
You use a closed dot with the greater than or less than with the line under the symbol or the greater than or equal to or the less than or equal to symbols. The line indicates a closed dot.