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What is the Least Common Multiple of 80770 and 80781?

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 80770 and 80781 is 6524681370.

LCM(80770,80781) = 6524681370

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Least Common Multiple of 80770 and 80781 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 80770 and 80781, than apply into the LCM equation.

GCF(80770,80781) = 1
LCM(80770,80781) = ( 80770 × 80781) / 1
LCM(80770,80781) = 6524681370 / 1
LCM(80770,80781) = 6524681370

Least Common Multiple (LCM) of 80770 and 80781 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 80770 and 80781. First we will calculate the prime factors of 80770 and 80781.

Prime Factorization of 80770

Prime factors of 80770 are 2, 5, 41, 197. Prime factorization of 80770 in exponential form is:

80770 = 21 × 51 × 411 × 1971

Prime Factorization of 80781

Prime factors of 80781 are 3, 26927. Prime factorization of 80781 in exponential form is:

80781 = 31 × 269271

Now multiplying the highest exponent prime factors to calculate the LCM of 80770 and 80781.

LCM(80770,80781) = 21 × 51 × 411 × 1971 × 31 × 269271
LCM(80770,80781) = 6524681370