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What is the Least Common Multiple of 68979 and 68991?

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 68979 and 68991 is 1586310063.

LCM(68979,68991) = 1586310063

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Least Common Multiple of 68979 and 68991 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68979 and 68991, than apply into the LCM equation.

GCF(68979,68991) = 3
LCM(68979,68991) = ( 68979 × 68991) / 3
LCM(68979,68991) = 4758930189 / 3
LCM(68979,68991) = 1586310063

Least Common Multiple (LCM) of 68979 and 68991 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68979 and 68991. First we will calculate the prime factors of 68979 and 68991.

Prime Factorization of 68979

Prime factors of 68979 are 3, 22993. Prime factorization of 68979 in exponential form is:

68979 = 31 × 229931

Prime Factorization of 68991

Prime factors of 68991 are 3, 13, 29, 61. Prime factorization of 68991 in exponential form is:

68991 = 31 × 131 × 291 × 611

Now multiplying the highest exponent prime factors to calculate the LCM of 68979 and 68991.

LCM(68979,68991) = 31 × 229931 × 131 × 291 × 611
LCM(68979,68991) = 1586310063