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What is the Least Common Multiple of 291 and 300?

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 291 and 300 is 29100.

LCM(291,300) = 29100

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Least Common Multiple of 291 and 300 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 291 and 300, than apply into the LCM equation.

GCF(291,300) = 3
LCM(291,300) = ( 291 × 300) / 3
LCM(291,300) = 87300 / 3
LCM(291,300) = 29100

Least Common Multiple (LCM) of 291 and 300 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 291 and 300. First we will calculate the prime factors of 291 and 300.

Prime Factorization of 291

Prime factors of 291 are 3, 97. Prime factorization of 291 in exponential form is:

291 = 31 × 971

Prime Factorization of 300

Prime factors of 300 are 2, 3, 5. Prime factorization of 300 in exponential form is:

300 = 22 × 31 × 52

Now multiplying the highest exponent prime factors to calculate the LCM of 291 and 300.

LCM(291,300) = 31 × 971 × 22 × 52
LCM(291,300) = 29100