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What is the Least Common Multiple of 78231 and 78246?

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 78231 and 78246 is 2040420942.

LCM(78231,78246) = 2040420942

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Least Common Multiple of 78231 and 78246 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78231 and 78246, than apply into the LCM equation.

GCF(78231,78246) = 3
LCM(78231,78246) = ( 78231 × 78246) / 3
LCM(78231,78246) = 6121262826 / 3
LCM(78231,78246) = 2040420942

Least Common Multiple (LCM) of 78231 and 78246 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78231 and 78246. First we will calculate the prime factors of 78231 and 78246.

Prime Factorization of 78231

Prime factors of 78231 are 3, 89, 293. Prime factorization of 78231 in exponential form is:

78231 = 31 × 891 × 2931

Prime Factorization of 78246

Prime factors of 78246 are 2, 3, 7, 23. Prime factorization of 78246 in exponential form is:

78246 = 21 × 35 × 71 × 231

Now multiplying the highest exponent prime factors to calculate the LCM of 78231 and 78246.

LCM(78231,78246) = 35 × 891 × 2931 × 21 × 71 × 231
LCM(78231,78246) = 2040420942