What is the Least Common Multiple of 90983 and 90991?

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 90983 and 90991 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 90983 and 90991, than apply into the LCM equation.

GCF(90983,90991) = 1
LCM(90983,90991) = ( 90983 × 90991) / 1
LCM(90983,90991) = 8278634153 / 1
LCM(90983,90991) = 8278634153

Least Common Multiple (LCM) of 90983 and 90991 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 90983 and 90991. First we will calculate the prime factors of 90983 and 90991.

Prime Factorization of 90983

Prime Factorization of 90991

Now multiplying the highest exponent prime factors to calculate the LCM of 90983 and 90991.

LCM(90983,90991) = 37¹ × 2459¹ × 19¹ × 4789¹
LCM(90983,90991) = 8278634153