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What is the Least Common Multiple of 78684 and 78694?

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 78684 and 78694 is 3095979348.

LCM(78684,78694) = 3095979348

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Least Common Multiple of 78684 and 78694 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78684 and 78694, than apply into the LCM equation.

GCF(78684,78694) = 2
LCM(78684,78694) = ( 78684 × 78694) / 2
LCM(78684,78694) = 6191958696 / 2
LCM(78684,78694) = 3095979348

Least Common Multiple (LCM) of 78684 and 78694 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78684 and 78694. First we will calculate the prime factors of 78684 and 78694.

Prime Factorization of 78684

Prime factors of 78684 are 2, 3, 79, 83. Prime factorization of 78684 in exponential form is:

78684 = 22 × 31 × 791 × 831

Prime Factorization of 78694

Prime factors of 78694 are 2, 7, 11, 73. Prime factorization of 78694 in exponential form is:

78694 = 21 × 72 × 111 × 731

Now multiplying the highest exponent prime factors to calculate the LCM of 78684 and 78694.

LCM(78684,78694) = 22 × 31 × 791 × 831 × 72 × 111 × 731
LCM(78684,78694) = 3095979348