What is the Least Common Multiple of 40070 and 40078?

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 40070 and 40078 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40070 and 40078, than apply into the LCM equation.

GCF(40070,40078) = 2
LCM(40070,40078) = ( 40070 × 40078) / 2
LCM(40070,40078) = 1605925460 / 2
LCM(40070,40078) = 802962730

Least Common Multiple (LCM) of 40070 and 40078 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40070 and 40078. First we will calculate the prime factors of 40070 and 40078.

Prime Factorization of 40070

Prime Factorization of 40078

Now multiplying the highest exponent prime factors to calculate the LCM of 40070 and 40078.

LCM(40070,40078) = 2¹ × 5¹ × 4007¹ × 29¹ × 691¹
LCM(40070,40078) = 802962730