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What is the Least Common Multiple of 78205 and 78222?

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 78205 and 78222 is 6117351510.

LCM(78205,78222) = 6117351510

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Least Common Multiple of 78205 and 78222 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78205 and 78222, than apply into the LCM equation.

GCF(78205,78222) = 1
LCM(78205,78222) = ( 78205 × 78222) / 1
LCM(78205,78222) = 6117351510 / 1
LCM(78205,78222) = 6117351510

Least Common Multiple (LCM) of 78205 and 78222 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78205 and 78222. First we will calculate the prime factors of 78205 and 78222.

Prime Factorization of 78205

Prime factors of 78205 are 5, 15641. Prime factorization of 78205 in exponential form is:

78205 = 51 × 156411

Prime Factorization of 78222

Prime factors of 78222 are 2, 3, 13037. Prime factorization of 78222 in exponential form is:

78222 = 21 × 31 × 130371

Now multiplying the highest exponent prime factors to calculate the LCM of 78205 and 78222.

LCM(78205,78222) = 51 × 156411 × 21 × 31 × 130371
LCM(78205,78222) = 6117351510