What is the Least Common Multiple of 77981 and 77987?

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 77981 and 77987 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77981 and 77987, than apply into the LCM equation.

GCF(77981,77987) = 1
LCM(77981,77987) = ( 77981 × 77987) / 1
LCM(77981,77987) = 6081504247 / 1
LCM(77981,77987) = 6081504247

Least Common Multiple (LCM) of 77981 and 77987 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77981 and 77987. First we will calculate the prime factors of 77981 and 77987.

Prime Factorization of 77981

Prime Factorization of 77987

Now multiplying the highest exponent prime factors to calculate the LCM of 77981 and 77987.

LCM(77981,77987) = 29¹ × 2689¹ × 7¹ × 13¹ × 857¹
LCM(77981,77987) = 6081504247