Do you possibly mean Greatest Common Factor? The GCF of 15 and 35 is 5 because its the highest number that will divide evenly into both numbers.
I guess the lowest common factor would be lowest number that divides into them which is -5 or negative 5, but why would you need that?
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The Greatest Common Factor of 15, 35, 54: 1
5 is a factor of 35, so the LCD is 35.
5* * * * *A pedantic amendment:5 is the Highest common factor. The lowest common factor for any set of postitive integers is always 1.
Well, honey, the lowest common factor of 70 and 105 is 35. It's like finding the smallest number that both 70 and 105 can be divided by without leaving a remainder. So, there you have it, 35 is the winner in this number game.
The least common multiple of the numbers 35 and 14 is 70.