What is the Least Common Multiple of 83760 and 83778?

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 of 83760 and 83778 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 83760 and 83778, than apply into the LCM equation.

GCF(83760,83778) = 6
LCM(83760,83778) = ( 83760 × 83778) / 6
LCM(83760,83778) = 7017245280 / 6
LCM(83760,83778) = 1169540880

Least Common Multiple (LCM) of 83760 and 83778 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 83760 and 83778. First we will calculate the prime factors of 83760 and 83778.

Prime Factorization of 83760

Prime Factorization of 83778

Now multiplying the highest exponent prime factors to calculate the LCM of 83760 and 83778.

LCM(83760,83778) = 2⁴ × 3¹ × 5¹ × 349¹ × 13963¹
LCM(83760,83778) = 1169540880