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What is the Least Common Multiple of 80780 and 80787?

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 80780 and 80787 is 932281980.

LCM(80780,80787) = 932281980

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Least Common Multiple of 80780 and 80787 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 80780 and 80787, than apply into the LCM equation.

GCF(80780,80787) = 7
LCM(80780,80787) = ( 80780 × 80787) / 7
LCM(80780,80787) = 6525973860 / 7
LCM(80780,80787) = 932281980

Least Common Multiple (LCM) of 80780 and 80787 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 80780 and 80787. First we will calculate the prime factors of 80780 and 80787.

Prime Factorization of 80780

Prime factors of 80780 are 2, 5, 7, 577. Prime factorization of 80780 in exponential form is:

80780 = 22 × 51 × 71 × 5771

Prime Factorization of 80787

Prime factors of 80787 are 3, 7, 3847. Prime factorization of 80787 in exponential form is:

80787 = 31 × 71 × 38471

Now multiplying the highest exponent prime factors to calculate the LCM of 80780 and 80787.

LCM(80780,80787) = 22 × 51 × 71 × 5771 × 31 × 38471
LCM(80780,80787) = 932281980