Yes, yes, and yes.
No, but it is a common multiple.
240
the common multiple of 9 15 30 is 90
The least common multiple of the numbers 30, 15 and 9 is 90.
Yes, 80x9=720
The answer is 540
The Least Common Multiple (LCM) of (9,16,5) is 720
The common factors of 90 and 720 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45 and 90.
The Least Common Multiple (LCM) for 9 6 15 is 90.
1 × 720 = 720 2 × 360 = 720 3 × 240 = 720 4 × 180 = 720 5 × 144 = 720 6 × 120 = 720 8 × 90 = 720 9 × 80 = 720 10 × 72 = 720 12 × 60 = 720 15 × 48 = 720 16 × 45 = 720 18 × 40 = 720 20 × 36 = 720 24 × 30 = 720
Factors: 1 and 180 2 and 90 3 and 60 4 and 45 5 and 36 6 and 30 9 and 30 10 and 18 12 and 15 Multiples: 180 360 540 720 900 1080 1260, etc.
The LCM of these numbers is 720. LCM is Least Common Multiple.