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What is the Least Common Multiple of 968 and 972?

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 968 and 972 is 235224.

LCM(968,972) = 235224

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Least Common Multiple of 968 and 972 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 968 and 972, than apply into the LCM equation.

GCF(968,972) = 4
LCM(968,972) = ( 968 × 972) / 4
LCM(968,972) = 940896 / 4
LCM(968,972) = 235224

Least Common Multiple (LCM) of 968 and 972 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 968 and 972. First we will calculate the prime factors of 968 and 972.

Prime Factorization of 968

Prime factors of 968 are 2, 11. Prime factorization of 968 in exponential form is:

968 = 23 × 112

Prime Factorization of 972

Prime factors of 972 are 2, 3. Prime factorization of 972 in exponential form is:

972 = 22 × 35

Now multiplying the highest exponent prime factors to calculate the LCM of 968 and 972.

LCM(968,972) = 23 × 112 × 35
LCM(968,972) = 235224