What is the Least Common Multiple of 87890 and 87900?

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 87890 and 87900 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87890 and 87900, than apply into the LCM equation.

GCF(87890,87900) = 10
LCM(87890,87900) = ( 87890 × 87900) / 10
LCM(87890,87900) = 7725531000 / 10
LCM(87890,87900) = 772553100

Least Common Multiple (LCM) of 87890 and 87900 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87890 and 87900. First we will calculate the prime factors of 87890 and 87900.

Prime Factorization of 87890

Prime Factorization of 87900

Now multiplying the highest exponent prime factors to calculate the LCM of 87890 and 87900.

LCM(87890,87900) = 2² × 5² × 11¹ × 17¹ × 47¹ × 3¹ × 293¹
LCM(87890,87900) = 772553100