What is the Least Common Multiple of 8870 and 8890?

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 8870 and 8890 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8870 and 8890, than apply into the LCM equation.

GCF(8870,8890) = 10
LCM(8870,8890) = ( 8870 × 8890) / 10
LCM(8870,8890) = 78854300 / 10
LCM(8870,8890) = 7885430

Least Common Multiple (LCM) of 8870 and 8890 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8870 and 8890. First we will calculate the prime factors of 8870 and 8890.

Prime Factorization of 8870

Prime Factorization of 8890

Now multiplying the highest exponent prime factors to calculate the LCM of 8870 and 8890.

LCM(8870,8890) = 2¹ × 5¹ × 887¹ × 7¹ × 127¹
LCM(8870,8890) = 7885430