What is the Least Common Multiple of 68678 and 68690?

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 68678 and 68690 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68678 and 68690, than apply into the LCM equation.

GCF(68678,68690) = 2
LCM(68678,68690) = ( 68678 × 68690) / 2
LCM(68678,68690) = 4717491820 / 2
LCM(68678,68690) = 2358745910

Least Common Multiple (LCM) of 68678 and 68690 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68678 and 68690. First we will calculate the prime factors of 68678 and 68690.

Prime Factorization of 68678

Prime Factorization of 68690

Now multiplying the highest exponent prime factors to calculate the LCM of 68678 and 68690.

LCM(68678,68690) = 2¹ × 23¹ × 1493¹ × 5¹ × 6869¹
LCM(68678,68690) = 2358745910