What is the Least Common Multiple of 69980 and 69992?

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 69980 and 69992 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 69980 and 69992, than apply into the LCM equation.

GCF(69980,69992) = 4
LCM(69980,69992) = ( 69980 × 69992) / 4
LCM(69980,69992) = 4898040160 / 4
LCM(69980,69992) = 1224510040

Least Common Multiple (LCM) of 69980 and 69992 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 69980 and 69992. First we will calculate the prime factors of 69980 and 69992.

Prime Factorization of 69980

Prime Factorization of 69992

Now multiplying the highest exponent prime factors to calculate the LCM of 69980 and 69992.

LCM(69980,69992) = 2³ × 5¹ × 3499¹ × 13¹ × 673¹
LCM(69980,69992) = 1224510040