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What is the Least Common Multiple of 2991 and 2996?

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 2991 and 2996 is 8961036.

LCM(2991,2996) = 8961036

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Least Common Multiple of 2991 and 2996 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2991 and 2996, than apply into the LCM equation.

GCF(2991,2996) = 1
LCM(2991,2996) = ( 2991 × 2996) / 1
LCM(2991,2996) = 8961036 / 1
LCM(2991,2996) = 8961036

Least Common Multiple (LCM) of 2991 and 2996 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2991 and 2996. First we will calculate the prime factors of 2991 and 2996.

Prime Factorization of 2991

Prime factors of 2991 are 3, 997. Prime factorization of 2991 in exponential form is:

2991 = 31 × 9971

Prime Factorization of 2996

Prime factors of 2996 are 2, 7, 107. Prime factorization of 2996 in exponential form is:

2996 = 22 × 71 × 1071

Now multiplying the highest exponent prime factors to calculate the LCM of 2991 and 2996.

LCM(2991,2996) = 31 × 9971 × 22 × 71 × 1071
LCM(2991,2996) = 8961036