These: 1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330
Multiplied as: 1 x 330, 2 x 165, 3 x 110, 5 x 66, 6 x 55, 10 x 33, 11 x 30, 15 x 22
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When they have no common prime factors.
The same way anyone else does. To multiply fractions, multiply the top numbers together and then the bottom numbers together. The two totals become the top and bottom number, respectively, of the new fraction. To divide fractions, flip the second fraction upside down and multiply it.
When two numbers have a GCF of 1, their product will be their LCM.
The numbers are 4 and 13
To get multiples of 10, multiply 10 by different whole numbers.Similarly, to get multiples of 11, multiply 11 by different whole numbers. If you want COMMON multiples, get the LEAST common multiple of the two; then multiply this least common multiple by different whole numbers to get additional common multiples.