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What is the Least Common Multiple of 6984 and 7004?

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 6984 and 7004 is 12228984.

LCM(6984,7004) = 12228984

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Least Common Multiple of 6984 and 7004 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6984 and 7004, than apply into the LCM equation.

GCF(6984,7004) = 4
LCM(6984,7004) = ( 6984 × 7004) / 4
LCM(6984,7004) = 48915936 / 4
LCM(6984,7004) = 12228984

Least Common Multiple (LCM) of 6984 and 7004 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 6984 and 7004. First we will calculate the prime factors of 6984 and 7004.

Prime Factorization of 6984

Prime factors of 6984 are 2, 3, 97. Prime factorization of 6984 in exponential form is:

6984 = 23 × 32 × 971

Prime Factorization of 7004

Prime factors of 7004 are 2, 17, 103. Prime factorization of 7004 in exponential form is:

7004 = 22 × 171 × 1031

Now multiplying the highest exponent prime factors to calculate the LCM of 6984 and 7004.

LCM(6984,7004) = 23 × 32 × 971 × 171 × 1031
LCM(6984,7004) = 12228984