## LEAST COMMON MULTIPLE: LCM(45, 20) (PRIME FACTORS METHOD) RESULT

LCM(45, 20) = 180 DESCRIPTIONS

Prime factorization of 45 :

(45 = 3 × 3 × 5)

Prime factorization of 20 :

(20 = 2 × 2 × 5)

• 45 = 3 × 3 × 5
• 20 = 2 × 2 × 5

Provided that the common prime factor (5) appears in the multiplication only once, the LCM of 45 and 20 is equal to the product of all prime factors.

LCM(45, 20) = 5 × 3 × 3 × 2 × 2 = 180

## INFORMATION

The solution and descriptions above are generated by the LCM calculator. You can use the LCM calculator to see the least common multiples of other numbers.

### LCM OF TWO NUMBERS

The least common multiple (LCM) of two positive whole numbers is the smallest number that is divisible by these numbers. LCM can be found by factoring the given numbers. Provided that the common prime factors appear in the multiplication only once, LCM is equal to the product of all prime factors.

### OTHER INFORMATION

👉 Click here to see the LCM calculation of 45 and 20 using the cake method.

👉 Click here to see the GCF calculation of 45 and 20 using the cake method.

👉 Click here to see the GCF calculation of 45 and 20 using the prime factorization method. 