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All numbers with 12 as a factor have 2 as a factor, but not all have 10 as a factor.
12 is a factor of all of them. Since 12 can't have a factor higher than 12, it must be the GCF.
Since 12 is a factor of 24, all the factors of 12 are common to 24.
One factor is 4. All of the factors of 12 are {1, 2, 3, 4, 6, 12}
Since 12 is a factor of 72, all of its factors are common.
There are 12 factors in all.
Because all of 12's multiples are even numbers, 12 doesn't divide evenly into 16839. Therefore, 12 is not a factor of 16839.
Nope... 12 is a factor of itself - but not a factor of six.
A composite factor is a factor that is a composite number, as opposed to a prime factor which is a factor that is a prime number.
It is, because 2 is a common factor for all even numbers.
1, 2, 3, 4, 6, and 12 are all factors of 12.
No, that's not true. 12 itself is a multiple of 12 (has 12 as a factor), but it doesn't have 10 as a factor. However, every multiple of 12 will have 1, 2, 3, 4, 6, and 12 as factors.