What is the Least Common Multiple of 42820 and 42826?

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 42820 and 42826 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42820 and 42826, than apply into the LCM equation.

GCF(42820,42826) = 2
LCM(42820,42826) = ( 42820 × 42826) / 2
LCM(42820,42826) = 1833809320 / 2
LCM(42820,42826) = 916904660

Least Common Multiple (LCM) of 42820 and 42826 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42820 and 42826. First we will calculate the prime factors of 42820 and 42826.

Prime Factorization of 42820

Prime Factorization of 42826

Now multiplying the highest exponent prime factors to calculate the LCM of 42820 and 42826.

LCM(42820,42826) = 2² × 5¹ × 2141¹ × 7² × 19¹ × 23¹
LCM(42820,42826) = 916904660