greatest common factor the tree way:
ex:25&30
25 30
^ ^
5x5 5x6
5x5 are prime numbers so leave it. 5x ^
5x2x3 2x3=6
then line them up like this:25:5x5
30:5x2x3 then make sum matches.5 and...
You mean least common multiple right?
Step 1) Find the HCF for the two numbers.For 18 and 30, HCF is 6.Step 2) Divide that HCF into either number; it doesn't matter which one you choose, so choose...
The way that always works is prime factorization. It is harder with more numbers, though. For example: If your numbers are 6, 8, and 16; Do the prime factorization if you do not know what it is, it...