-15
The greatest common factor of 18 and 21 is 3.
19 is one greater than 18.
No, the GCF of any two numbers can't get greater than the smaller of the two numbers.
0.1667
No, 18 is a multiple of 3. 3 is a factor of 18.
18 is multiple of 3 so 18 can be factored as 18=2*3*3
Negative 3 is greater.
Yes. If one number is less than another, then the negative of the first is greater than the negative of the second. 4 is less than 18 so -4 is greater than -18
6
18 = 2*3*3 So composite factors of 18 are: 2*3 = 6 3*3 = 9 and 2*3*3 = 18 These are all the factors of 18 other than 1 and its prime factors (2 and 3)
The number 6 is a divisor of 18 because 6, and integer, will divide into 18 exactly 3 times. We know that 6 x 3 = 18, so both 6 and 3 are divisors of 18. The factors of 18 are 2, 3 and 3 because 2 x 3 x 3 = 18.
The factors of 18 are: 1 2 3 6 9 18 The prime factors are: 2 x 3 x 3