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What is the Least Common Multiple of 89971 and 89980?

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 89971 and 89980 is 8095590580.

LCM(89971,89980) = 8095590580

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Least Common Multiple of 89971 and 89980 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 89971 and 89980, than apply into the LCM equation.

GCF(89971,89980) = 1
LCM(89971,89980) = ( 89971 × 89980) / 1
LCM(89971,89980) = 8095590580 / 1
LCM(89971,89980) = 8095590580

Least Common Multiple (LCM) of 89971 and 89980 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 89971 and 89980. First we will calculate the prime factors of 89971 and 89980.

Prime Factorization of 89971

Prime factors of 89971 are 7, 12853. Prime factorization of 89971 in exponential form is:

89971 = 71 × 128531

Prime Factorization of 89980

Prime factors of 89980 are 2, 5, 11, 409. Prime factorization of 89980 in exponential form is:

89980 = 22 × 51 × 111 × 4091

Now multiplying the highest exponent prime factors to calculate the LCM of 89971 and 89980.

LCM(89971,89980) = 71 × 128531 × 22 × 51 × 111 × 4091
LCM(89971,89980) = 8095590580