Least common factor is always 1. If you meant least common multiple, it would be 140. If you meant greatestcommon factor, it would be 4.
1. Are you sure you meant "least common factor"?
Form Factor is the size, configuration, or physical arrangement of a computer hardware object.
a short and long term consequence.
it is the distortion or noise present in the signal or harmonics
The flow of an activity is limited by the presence or absence of one or many factors necessary for survival. That factor is called as limiting factor.
The lowest common factor of any two numbers would be 1. If you meant highest common factor, that would be 5. If you meant lowest common multiple, that would be 450.
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The answer depends on what it is meant to be a factor of.
The lowest common FACTOR of any set of numbers is 1. Perhaps you meant the Lowest Common MULTIPLE, which for 6, 10, 15 is 30. Or you meant the HIGHEST Common Factor, which for 6, 10, 15 is 1.
Cher Lloyd came 4th on The X Factor 2010 which meant she got to the final.
7 is the greatest common factor of 4942 and 21, or of 49, 42 and 21, if that is what you meant.