What is the Least Common Multiple of 7840 and 7848?

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 7840 and 7848 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7840 and 7848, than apply into the LCM equation.

GCF(7840,7848) = 8
LCM(7840,7848) = ( 7840 × 7848) / 8
LCM(7840,7848) = 61528320 / 8
LCM(7840,7848) = 7691040

Least Common Multiple (LCM) of 7840 and 7848 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7840 and 7848. First we will calculate the prime factors of 7840 and 7848.

Prime Factorization of 7840

Prime Factorization of 7848

Now multiplying the highest exponent prime factors to calculate the LCM of 7840 and 7848.

LCM(7840,7848) = 2⁵ × 5¹ × 7² × 3² × 109¹
LCM(7840,7848) = 7691040