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What is the Least Common Multiple of 78968 and 78986?

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 78968 and 78986 is 3118683224.

LCM(78968,78986) = 3118683224

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Least Common Multiple of 78968 and 78986 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78968 and 78986, than apply into the LCM equation.

GCF(78968,78986) = 2
LCM(78968,78986) = ( 78968 × 78986) / 2
LCM(78968,78986) = 6237366448 / 2
LCM(78968,78986) = 3118683224

Least Common Multiple (LCM) of 78968 and 78986 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78968 and 78986. First we will calculate the prime factors of 78968 and 78986.

Prime Factorization of 78968

Prime factors of 78968 are 2, 9871. Prime factorization of 78968 in exponential form is:

78968 = 23 × 98711

Prime Factorization of 78986

Prime factors of 78986 are 2, 73, 541. Prime factorization of 78986 in exponential form is:

78986 = 21 × 731 × 5411

Now multiplying the highest exponent prime factors to calculate the LCM of 78968 and 78986.

LCM(78968,78986) = 23 × 98711 × 731 × 5411
LCM(78968,78986) = 3118683224