The common factors are: 1, 5.
The LCM is: 220
2
Factors of 20: 1, 2, 4, 5, 10, 20
Greatest Common Divisor (GCD) for 20 65 is 5.
The factors of 20 are 1, 2, 4, 5, 10, and 20. The factors of 30n would depend on the value of n. If n is a whole number, then the factors would include all the factors of 30 multiplied by n.
It is 9
0.55
The GCF is 10. The reduced fraction is 2/3.
75% of 20 is 15.
17 out of 20 is 85%
13 and 7
15 is 75% of 20.