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What is the Least Common Multiple of 71900 and 71912?

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 71900 and 71912 is 1292618200.

LCM(71900,71912) = 1292618200

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Least Common Multiple of 71900 and 71912 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71900 and 71912, than apply into the LCM equation.

GCF(71900,71912) = 4
LCM(71900,71912) = ( 71900 × 71912) / 4
LCM(71900,71912) = 5170472800 / 4
LCM(71900,71912) = 1292618200

Least Common Multiple (LCM) of 71900 and 71912 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71900 and 71912. First we will calculate the prime factors of 71900 and 71912.

Prime Factorization of 71900

Prime factors of 71900 are 2, 5, 719. Prime factorization of 71900 in exponential form is:

71900 = 22 × 52 × 7191

Prime Factorization of 71912

Prime factors of 71912 are 2, 89, 101. Prime factorization of 71912 in exponential form is:

71912 = 23 × 891 × 1011

Now multiplying the highest exponent prime factors to calculate the LCM of 71900 and 71912.

LCM(71900,71912) = 23 × 52 × 7191 × 891 × 1011
LCM(71900,71912) = 1292618200