What is the Least Common Multiple of 40761 and 40780?

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 40761 and 40780 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40761 and 40780, than apply into the LCM equation.

GCF(40761,40780) = 1
LCM(40761,40780) = ( 40761 × 40780) / 1
LCM(40761,40780) = 1662233580 / 1
LCM(40761,40780) = 1662233580

Least Common Multiple (LCM) of 40761 and 40780 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40761 and 40780. First we will calculate the prime factors of 40761 and 40780.

Prime Factorization of 40761

Prime Factorization of 40780

Now multiplying the highest exponent prime factors to calculate the LCM of 40761 and 40780.

LCM(40761,40780) = 3² × 7¹ × 647¹ × 2² × 5¹ × 2039¹
LCM(40761,40780) = 1662233580