What is the Least Common Multiple of 70208 and 70220?

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 70208 and 70220 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70208 and 70220, than apply into the LCM equation.

GCF(70208,70220) = 4
LCM(70208,70220) = ( 70208 × 70220) / 4
LCM(70208,70220) = 4930005760 / 4
LCM(70208,70220) = 1232501440

Least Common Multiple (LCM) of 70208 and 70220 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70208 and 70220. First we will calculate the prime factors of 70208 and 70220.

Prime Factorization of 70208

Prime Factorization of 70220

Now multiplying the highest exponent prime factors to calculate the LCM of 70208 and 70220.

LCM(70208,70220) = 2⁶ × 1097¹ × 5¹ × 3511¹
LCM(70208,70220) = 1232501440