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What is the Least Common Multiple of 47972 and 47976?

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 47972 and 47976 is 575376168.

LCM(47972,47976) = 575376168

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Least Common Multiple of 47972 and 47976 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 47972 and 47976, than apply into the LCM equation.

GCF(47972,47976) = 4
LCM(47972,47976) = ( 47972 × 47976) / 4
LCM(47972,47976) = 2301504672 / 4
LCM(47972,47976) = 575376168

Least Common Multiple (LCM) of 47972 and 47976 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 47972 and 47976. First we will calculate the prime factors of 47972 and 47976.

Prime Factorization of 47972

Prime factors of 47972 are 2, 67, 179. Prime factorization of 47972 in exponential form is:

47972 = 22 × 671 × 1791

Prime Factorization of 47976

Prime factors of 47976 are 2, 3, 1999. Prime factorization of 47976 in exponential form is:

47976 = 23 × 31 × 19991

Now multiplying the highest exponent prime factors to calculate the LCM of 47972 and 47976.

LCM(47972,47976) = 23 × 671 × 1791 × 31 × 19991
LCM(47972,47976) = 575376168