What is the Least Common Multiple of 40078 and 40090?

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 40078 and 40090 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40078 and 40090, than apply into the LCM equation.

GCF(40078,40090) = 2
LCM(40078,40090) = ( 40078 × 40090) / 2
LCM(40078,40090) = 1606727020 / 2
LCM(40078,40090) = 803363510

Least Common Multiple (LCM) of 40078 and 40090 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40078 and 40090. First we will calculate the prime factors of 40078 and 40090.

Prime Factorization of 40078

Prime Factorization of 40090

Now multiplying the highest exponent prime factors to calculate the LCM of 40078 and 40090.

LCM(40078,40090) = 2¹ × 29¹ × 691¹ × 5¹ × 19¹ × 211¹
LCM(40078,40090) = 803363510