Prime factorization.
Example: 30 and 42
Factor them.
2 x 3 x 5 = 30
2 x 3 x 7 = 42
Combine the factors, eliminating duplicates.
2 x 3 x 5 x 7 = 210, the LCM
Chat with our AI personalities
Yes, always. This is the easiest way to find the LCM of two (or indeed any number of) primes.
easiest way take 6 and go through its multiples until you find a number that is divisible by all four numbers, 6,12,18 etc in this case 60 is the answer
The easiest way is to write the number and a factor of the number. 12 and 24 have an LCM of 24.
Many people find factor trees to be the easiest.
Multipling it by itself is probably the easiest way.