factorization: 78=2*3*13 65=5*13 LCM=2*3*5*13=390
65
The LCM is: 65
lcm(54, 65) = 3510 54 = 2 x 33 65 = 5 x 13 lcm = 2 x 33 x 5 x 13 = 3510
The GCF is 1 and the LCM is 65.
325
lcm(65, 104) = 520 65 = 5 × 13 104 = 2³ × 13 lcm = 2³ × 5 × 13 = 520
Prime Factorization of: 130= 2 x 5 x 13 65 = ......5 x 13 ============= LCM= 2 x 5 x 13 = 130
LCM of two numbers = product/HCF; 65 = 5 x 13, 155 = 5 x 31 so HCF is 5 and LCM is 65 x 155/5 = 2015
The LCM is 65.
39: 3 x 13 65: 5 x 13 So the LCM is 3 x 5 x 13 = 195
They are: GCF = 5 and LCM = 325 and the sum is 5+325 = 330