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# What is the LCM and gcf of 12 28 and 36?

Updated: 8/29/2023 Wiki User

5y ago

To find the LCM of these values, we need to factor out each term.

28 = 2² x 7

36 = 6 x 6 = 2² x 3²

Select the prime factor with the highest exponent and multiply all the "available" primes. The LCM turns out to be:

LCM = 2² x 3² x 7 = 252.

Therefore, the LCM of 28 and 36 is 252. Wiki User

10y ago   Wiki User

11y ago

First you need to split the numbers into their prime factors:

36 = 2x2x3x3

40 = 2x2x2x5

The next step is to identify the HCF. In this case the HCF is 4. Finally, you multiply the numbers together and divide by the HCF:

36x40/4 = 360

And so the LCM of 36 and 40 is 360.   Wiki User

11y ago

1 but most people don't use 1 because every numbers least common mulitpler is one so 2.   Wiki User

9y ago

You make a table of their multiples and find the first instance where they are the same.   Wiki User

8y ago

The LCM is 252.

The GCF is 4.   Wiki User

5y ago

The GCF is 4.

The LCM is 252.   Wiki User

5y ago

LCM(12, 28, 36) = 252.   Wiki User

7y ago

It is 504.   Earn +20 pts  