20
20, 40, 60, 80, 100, 120
20-40-60-80-100-120
20, 40, 60, 80, 100, 120, 140, 160, 180, 200
The least common multiple of 20 and 100 is 100. Multiples of 20 = [20, 40, 60, 80, 100, 120...] Multiples of 100 = [100, 200, 300, 400...] Therefore lowest common multiple is 100.
20
20
GCF(60, 40, 100) = 20.
The GCF is 20.
20, 40, 60, 80, 100, 120 * * * * * These are the first six multiples!
The GCF is 20.
20
40% off of 20 dollars = 60% of 20 dollars (100 - 40 = 60) = 20*60/100 = 12 dollars
The GCF is 20.
20, 40, 60, 80, 100.
To find the LCM you first have to break the numbers into their prime factors: 60 = 2x2x3x5 100 = 2x2x5x5 The next step is to identify the HCF. In this case it's 2x2x5 = 20. Finally, you multiply the numbers together and divide by the HCF: 60x100/20 = 300 Therefore the LCM of 60 and 100 is 300.
40, 60, 80, 100