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What is the Least Common Multiple of 77880 and 77898?

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 77880 and 77898 is 1011116040.

LCM(77880,77898) = 1011116040

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Least Common Multiple of 77880 and 77898 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77880 and 77898, than apply into the LCM equation.

GCF(77880,77898) = 6
LCM(77880,77898) = ( 77880 × 77898) / 6
LCM(77880,77898) = 6066696240 / 6
LCM(77880,77898) = 1011116040

Least Common Multiple (LCM) of 77880 and 77898 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77880 and 77898. First we will calculate the prime factors of 77880 and 77898.

Prime Factorization of 77880

Prime factors of 77880 are 2, 3, 5, 11, 59. Prime factorization of 77880 in exponential form is:

77880 = 23 × 31 × 51 × 111 × 591

Prime Factorization of 77898

Prime factors of 77898 are 2, 3, 12983. Prime factorization of 77898 in exponential form is:

77898 = 21 × 31 × 129831

Now multiplying the highest exponent prime factors to calculate the LCM of 77880 and 77898.

LCM(77880,77898) = 23 × 31 × 51 × 111 × 591 × 129831
LCM(77880,77898) = 1011116040