What is the Least Common Multiple of 91238 and 91245?

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 91238 and 91245 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91238 and 91245, than apply into the LCM equation.

GCF(91238,91245) = 7
LCM(91238,91245) = ( 91238 × 91245) / 7
LCM(91238,91245) = 8325011310 / 7
LCM(91238,91245) = 1189287330

Least Common Multiple (LCM) of 91238 and 91245 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91238 and 91245. First we will calculate the prime factors of 91238 and 91245.

Prime Factorization of 91238

Prime Factorization of 91245

Now multiplying the highest exponent prime factors to calculate the LCM of 91238 and 91245.

LCM(91238,91245) = 2¹ × 7⁴ × 19¹ × 3¹ × 5¹ × 11¹ × 79¹
LCM(91238,91245) = 1189287330