What is the Least Common Multiple of 91605 and 91615?

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 91605 and 91615 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91605 and 91615, than apply into the LCM equation.

GCF(91605,91615) = 5
LCM(91605,91615) = ( 91605 × 91615) / 5
LCM(91605,91615) = 8392392075 / 5
LCM(91605,91615) = 1678478415

Least Common Multiple (LCM) of 91605 and 91615 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91605 and 91615. First we will calculate the prime factors of 91605 and 91615.

Prime Factorization of 91605

Prime Factorization of 91615

Now multiplying the highest exponent prime factors to calculate the LCM of 91605 and 91615.

LCM(91605,91615) = 3¹ × 5¹ × 31¹ × 197¹ × 73¹ × 251¹
LCM(91605,91615) = 1678478415