GCF and LCM Calculator Logo

What is the Least Common Multiple of 440 and 450?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 440 and 450 is 19800.

LCM(440,450) = 19800

LCM Calculator and
and

Least Common Multiple of 440 and 450 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 440 and 450, than apply into the LCM equation.

GCF(440,450) = 10
LCM(440,450) = ( 440 × 450) / 10
LCM(440,450) = 198000 / 10
LCM(440,450) = 19800

Least Common Multiple (LCM) of 440 and 450 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 440 and 450. First we will calculate the prime factors of 440 and 450.

Prime Factorization of 440

Prime factors of 440 are 2, 5, 11. Prime factorization of 440 in exponential form is:

440 = 23 × 51 × 111

Prime Factorization of 450

Prime factors of 450 are 2, 3, 5. Prime factorization of 450 in exponential form is:

450 = 21 × 32 × 52

Now multiplying the highest exponent prime factors to calculate the LCM of 440 and 450.

LCM(440,450) = 23 × 52 × 111 × 32
LCM(440,450) = 19800