What is the Least Common Multiple of 91403 and 91421?

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 91403 and 91421 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91403 and 91421, than apply into the LCM equation.

GCF(91403,91421) = 1
LCM(91403,91421) = ( 91403 × 91421) / 1
LCM(91403,91421) = 8356153663 / 1
LCM(91403,91421) = 8356153663

Least Common Multiple (LCM) of 91403 and 91421 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91403 and 91421. First we will calculate the prime factors of 91403 and 91421.

Prime Factorization of 91403

Prime Factorization of 91421

Now multiplying the highest exponent prime factors to calculate the LCM of 91403 and 91421.

LCM(91403,91421) = 13¹ × 79¹ × 89¹ × 11¹ × 8311¹
LCM(91403,91421) = 8356153663