What is the Least Common Multiple of 68990 and 69010?

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 68990 and 69010 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68990 and 69010, than apply into the LCM equation.

GCF(68990,69010) = 10
LCM(68990,69010) = ( 68990 × 69010) / 10
LCM(68990,69010) = 4760999900 / 10
LCM(68990,69010) = 476099990

Least Common Multiple (LCM) of 68990 and 69010 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68990 and 69010. First we will calculate the prime factors of 68990 and 69010.

Prime Factorization of 68990

Prime Factorization of 69010

Now multiplying the highest exponent prime factors to calculate the LCM of 68990 and 69010.

LCM(68990,69010) = 2¹ × 5¹ × 6899¹ × 67¹ × 103¹
LCM(68990,69010) = 476099990