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What is the Least Common Multiple of 91956 and 91972?

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 91956 and 91972 is 2114344308.

LCM(91956,91972) = 2114344308

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Least Common Multiple of 91956 and 91972 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91956 and 91972, than apply into the LCM equation.

GCF(91956,91972) = 4
LCM(91956,91972) = ( 91956 × 91972) / 4
LCM(91956,91972) = 8457377232 / 4
LCM(91956,91972) = 2114344308

Least Common Multiple (LCM) of 91956 and 91972 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91956 and 91972. First we will calculate the prime factors of 91956 and 91972.

Prime Factorization of 91956

Prime factors of 91956 are 2, 3, 79, 97. Prime factorization of 91956 in exponential form is:

91956 = 22 × 31 × 791 × 971

Prime Factorization of 91972

Prime factors of 91972 are 2, 22993. Prime factorization of 91972 in exponential form is:

91972 = 22 × 229931

Now multiplying the highest exponent prime factors to calculate the LCM of 91956 and 91972.

LCM(91956,91972) = 22 × 31 × 791 × 971 × 229931
LCM(91956,91972) = 2114344308