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What is the Least Common Multiple of 4056 and 4068?

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 4056 and 4068 is 1374984.

LCM(4056,4068) = 1374984

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Least Common Multiple of 4056 and 4068 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4056 and 4068, than apply into the LCM equation.

GCF(4056,4068) = 12
LCM(4056,4068) = ( 4056 × 4068) / 12
LCM(4056,4068) = 16499808 / 12
LCM(4056,4068) = 1374984

Least Common Multiple (LCM) of 4056 and 4068 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4056 and 4068. First we will calculate the prime factors of 4056 and 4068.

Prime Factorization of 4056

Prime factors of 4056 are 2, 3, 13. Prime factorization of 4056 in exponential form is:

4056 = 23 × 31 × 132

Prime Factorization of 4068

Prime factors of 4068 are 2, 3, 113. Prime factorization of 4068 in exponential form is:

4068 = 22 × 32 × 1131

Now multiplying the highest exponent prime factors to calculate the LCM of 4056 and 4068.

LCM(4056,4068) = 23 × 32 × 132 × 1131
LCM(4056,4068) = 1374984