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What is the Least Common Multiple of 78685 and 78702?

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 78685 and 78702 is 6192666870.

LCM(78685,78702) = 6192666870

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Least Common Multiple of 78685 and 78702 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78685 and 78702, than apply into the LCM equation.

GCF(78685,78702) = 1
LCM(78685,78702) = ( 78685 × 78702) / 1
LCM(78685,78702) = 6192666870 / 1
LCM(78685,78702) = 6192666870

Least Common Multiple (LCM) of 78685 and 78702 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78685 and 78702. First we will calculate the prime factors of 78685 and 78702.

Prime Factorization of 78685

Prime factors of 78685 are 5, 15737. Prime factorization of 78685 in exponential form is:

78685 = 51 × 157371

Prime Factorization of 78702

Prime factors of 78702 are 2, 3, 13, 1009. Prime factorization of 78702 in exponential form is:

78702 = 21 × 31 × 131 × 10091

Now multiplying the highest exponent prime factors to calculate the LCM of 78685 and 78702.

LCM(78685,78702) = 51 × 157371 × 21 × 31 × 131 × 10091
LCM(78685,78702) = 6192666870