Factor them.
2 x 3 x 5 x 7 = 210
2 x 3 x 5 x 11 = 330
Combine the factors, eliminating duplicates.
2 x 3 x 5 x 7 x 11 = 2310, the LCM
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It is: 1260 which is also the LCM
You can find the GCF of two numbers by dividing their product by their LCM. The LCM of 30 and 42 is 210. What is their GCF? 30 x 42 = 1260 divided by 210 = 6 The GCF of 30 and 42 is 6.
Any element of the set of numbers of the form 210*k, where k is an integer, is evenly divisible.
the answer to the question 'what is the LCM of 3,7,10 is 210
The LCM is 1260. The GCF is 12.