What is the Least Common Multiple of 12970 and 12988?

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 12970 and 12988 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12970 and 12988, than apply into the LCM equation.

GCF(12970,12988) = 2
LCM(12970,12988) = ( 12970 × 12988) / 2
LCM(12970,12988) = 168454360 / 2
LCM(12970,12988) = 84227180

Least Common Multiple (LCM) of 12970 and 12988 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12970 and 12988. First we will calculate the prime factors of 12970 and 12988.

Prime Factorization of 12970

Prime Factorization of 12988

Now multiplying the highest exponent prime factors to calculate the LCM of 12970 and 12988.

LCM(12970,12988) = 2² × 5¹ × 1297¹ × 17¹ × 191¹
LCM(12970,12988) = 84227180