The LCM is 585.
The Least Common Multiple (LCM) for 39 45 is 585.
LCM of 21 and 45=315 Factors of 21= 3x7 Factors of 45=3x3x5 Lcm= 3x5x7x3=315
273
21 + 39 + 45 + 25 = 130
1092
The Least Common Multiple (LCM) for 39 21 is 273.
LCM = 273
630
It is: 630
List the multiples:15: 15, 30, 459: 9, 18, 27, 36, 453: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45Least common multiple: 45
Factor them. 3 x 5 = 15 39 3 x 3 x 5 = 45 Combine the factors, eliminating duplicates. 3 x 3 x 5 x 39 = 1755, the LCM.