What is the Least Common Multiple of 63980 and 63989?

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 63980 and 63989 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 63980 and 63989, than apply into the LCM equation.

GCF(63980,63989) = 1
LCM(63980,63989) = ( 63980 × 63989) / 1
LCM(63980,63989) = 4094016220 / 1
LCM(63980,63989) = 4094016220

Least Common Multiple (LCM) of 63980 and 63989 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 63980 and 63989. First we will calculate the prime factors of 63980 and 63989.

Prime Factorization of 63980

Prime Factorization of 63989

Now multiplying the highest exponent prime factors to calculate the LCM of 63980 and 63989.

LCM(63980,63989) = 2² × 5¹ × 7¹ × 457¹ × 61¹ × 1049¹
LCM(63980,63989) = 4094016220