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What is the Least Common Multiple of 73780 and 73786?

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 73780 and 73786 is 2721965540.

LCM(73780,73786) = 2721965540

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Least Common Multiple of 73780 and 73786 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 73780 and 73786, than apply into the LCM equation.

GCF(73780,73786) = 2
LCM(73780,73786) = ( 73780 × 73786) / 2
LCM(73780,73786) = 5443931080 / 2
LCM(73780,73786) = 2721965540

Least Common Multiple (LCM) of 73780 and 73786 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 73780 and 73786. First we will calculate the prime factors of 73780 and 73786.

Prime Factorization of 73780

Prime factors of 73780 are 2, 5, 7, 17, 31. Prime factorization of 73780 in exponential form is:

73780 = 22 × 51 × 71 × 171 × 311

Prime Factorization of 73786

Prime factors of 73786 are 2, 79, 467. Prime factorization of 73786 in exponential form is:

73786 = 21 × 791 × 4671

Now multiplying the highest exponent prime factors to calculate the LCM of 73780 and 73786.

LCM(73780,73786) = 22 × 51 × 71 × 171 × 311 × 791 × 4671
LCM(73780,73786) = 2721965540