No.
No because its factors are: 1, 2, 4, 8 and 16 which makes five of them
5, 10, 15 and 20 have five as a factor. The number 16 has five factors.
There are really only three distinct factor pairs:(16, 1) (8, 2)(4, 4)I suppose if you count (1,16) and (2,8) as being different from (16, 1) and (8,2), you could end up with as many as five factor pairs.
Those are the first five square numbers.
No, 16 is not a factor of 680.
16 is not a factor of 36.
Greatest common factor of 16 and 16 is 16.
Because 16 is a factor of 16, but it's not a factor of 42. So a number that's a factor of both 16 and 42 must be less than 16. (It can't be more than 16, because no factor of 16 can be bigger than 16.)
Since 16 is a factor of 32, it is automatically the GCF.
The greatest factor of 21 and 16 is 21, which is a factor of 21 but not of 16.
No, 16 is a multiple of 4. 4 is a factor of 16.
Quite possibly. 16 is a factor of all multiples of 16.