What is the Least Common Multiple of 91780 and 91784?

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 91780 and 91784 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91780 and 91784, than apply into the LCM equation.

GCF(91780,91784) = 4
LCM(91780,91784) = ( 91780 × 91784) / 4
LCM(91780,91784) = 8423935520 / 4
LCM(91780,91784) = 2105983880

Least Common Multiple (LCM) of 91780 and 91784 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91780 and 91784. First we will calculate the prime factors of 91780 and 91784.

Prime Factorization of 91780

Prime Factorization of 91784

Now multiplying the highest exponent prime factors to calculate the LCM of 91780 and 91784.

LCM(91780,91784) = 2³ × 5¹ × 13¹ × 353¹ × 7¹ × 11¹ × 149¹
LCM(91780,91784) = 2105983880