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What is the Least Common Multiple of 26961 and 26978?

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 26961 and 26978 is 727353858.

LCM(26961,26978) = 727353858

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Least Common Multiple of 26961 and 26978 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 26961 and 26978, than apply into the LCM equation.

GCF(26961,26978) = 1
LCM(26961,26978) = ( 26961 × 26978) / 1
LCM(26961,26978) = 727353858 / 1
LCM(26961,26978) = 727353858

Least Common Multiple (LCM) of 26961 and 26978 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 26961 and 26978. First we will calculate the prime factors of 26961 and 26978.

Prime Factorization of 26961

Prime factors of 26961 are 3, 11, 19, 43. Prime factorization of 26961 in exponential form is:

26961 = 31 × 111 × 191 × 431

Prime Factorization of 26978

Prime factors of 26978 are 2, 7, 41, 47. Prime factorization of 26978 in exponential form is:

26978 = 21 × 71 × 411 × 471

Now multiplying the highest exponent prime factors to calculate the LCM of 26961 and 26978.

LCM(26961,26978) = 31 × 111 × 191 × 431 × 21 × 71 × 411 × 471
LCM(26961,26978) = 727353858