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What is the Least Common Multiple of 78761 and 78771?

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 78761 and 78771 is 6204082731.

LCM(78761,78771) = 6204082731

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Least Common Multiple of 78761 and 78771 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78761 and 78771, than apply into the LCM equation.

GCF(78761,78771) = 1
LCM(78761,78771) = ( 78761 × 78771) / 1
LCM(78761,78771) = 6204082731 / 1
LCM(78761,78771) = 6204082731

Least Common Multiple (LCM) of 78761 and 78771 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78761 and 78771. First we will calculate the prime factors of 78761 and 78771.

Prime Factorization of 78761

Prime factors of 78761 are 17, 41, 113. Prime factorization of 78761 in exponential form is:

78761 = 171 × 411 × 1131

Prime Factorization of 78771

Prime factors of 78771 are 3, 7, 11, 31. Prime factorization of 78771 in exponential form is:

78771 = 31 × 71 × 112 × 311

Now multiplying the highest exponent prime factors to calculate the LCM of 78761 and 78771.

LCM(78761,78771) = 171 × 411 × 1131 × 31 × 71 × 112 × 311
LCM(78761,78771) = 6204082731