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What is the Least Common Multiple of 47971 and 47982?

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 47971 and 47982 is 209249502.

LCM(47971,47982) = 209249502

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Least Common Multiple of 47971 and 47982 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 47971 and 47982, than apply into the LCM equation.

GCF(47971,47982) = 11
LCM(47971,47982) = ( 47971 × 47982) / 11
LCM(47971,47982) = 2301744522 / 11
LCM(47971,47982) = 209249502

Least Common Multiple (LCM) of 47971 and 47982 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 47971 and 47982. First we will calculate the prime factors of 47971 and 47982.

Prime Factorization of 47971

Prime factors of 47971 are 7, 11, 89. Prime factorization of 47971 in exponential form is:

47971 = 72 × 111 × 891

Prime Factorization of 47982

Prime factors of 47982 are 2, 3, 11, 727. Prime factorization of 47982 in exponential form is:

47982 = 21 × 31 × 111 × 7271

Now multiplying the highest exponent prime factors to calculate the LCM of 47971 and 47982.

LCM(47971,47982) = 72 × 111 × 891 × 21 × 31 × 7271
LCM(47971,47982) = 209249502