LCM for 66 and 243

The first method to find LCM for numbers 66 and 243 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 66 and 243 is 3, so

LCM = (66 × 243) ÷ 3

LCM = 16038 ÷ 3

LCM = 5346

The second method to find LCM for numbers 66 and 243 is to list out the common multiples for both nubmers and pick the first which matching:

Multiples of 66: 66, 132, 198, 264, 330, 396, 462, 528, 594, 660, 726, 792, 858, 924, 990, 1056, 1122, 1188, 1254, 1320, 1386, 1452, 1518, 1584, 1650, 1716, 1782, 1848, 1914, 1980, 2046, 2112, 2178, 2244, 2310, 2376, 2442, 2508, 2574, 2640, 2706, 2772, 2838, 2904, 2970, 3036, 3102, 3168, 3234, 3300, 3366, 3432, 3498, 3564, 3630, 3696, 3762, 3828, 3894, 3960, 4026, 4092, 4158, 4224, 4290, 4356, 4422, 4488, 4554, 4620, 4686, 4752, 4818, 4884, 4950, 5016, 5082, 5148, 5214, 5280, 5346, 5412, 5478

Multiples of 243: 243, 486, 729, 972, 1215, 1458, 1701, 1944, 2187, 2430, 2673, 2916, 3159, 3402, 3645, 3888, 4131, 4374, 4617, 4860, 5103, 5346, 5589, 5832

So the LCM for 66 and 243 is 5346

Another method to find LCM for numbers 66 and 243 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors: