GCF and LCM Calculator Logo

What is the Least Common Multiple of 66906 and 66920?

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 66906 and 66920 is 319810680.

LCM(66906,66920) = 319810680

LCM Calculator and
and

Least Common Multiple of 66906 and 66920 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66906 and 66920, than apply into the LCM equation.

GCF(66906,66920) = 14
LCM(66906,66920) = ( 66906 × 66920) / 14
LCM(66906,66920) = 4477349520 / 14
LCM(66906,66920) = 319810680

Least Common Multiple (LCM) of 66906 and 66920 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66906 and 66920. First we will calculate the prime factors of 66906 and 66920.

Prime Factorization of 66906

Prime factors of 66906 are 2, 3, 7, 59. Prime factorization of 66906 in exponential form is:

66906 = 21 × 34 × 71 × 591

Prime Factorization of 66920

Prime factors of 66920 are 2, 5, 7, 239. Prime factorization of 66920 in exponential form is:

66920 = 23 × 51 × 71 × 2391

Now multiplying the highest exponent prime factors to calculate the LCM of 66906 and 66920.

LCM(66906,66920) = 23 × 34 × 71 × 591 × 51 × 2391
LCM(66906,66920) = 319810680