What is the Least Common Multiple of 17740 and 17758?

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 17740 and 17758 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17740 and 17758, than apply into the LCM equation.

GCF(17740,17758) = 2
LCM(17740,17758) = ( 17740 × 17758) / 2
LCM(17740,17758) = 315026920 / 2
LCM(17740,17758) = 157513460

Least Common Multiple (LCM) of 17740 and 17758 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17740 and 17758. First we will calculate the prime factors of 17740 and 17758.

Prime Factorization of 17740

Prime Factorization of 17758

Now multiplying the highest exponent prime factors to calculate the LCM of 17740 and 17758.

LCM(17740,17758) = 2² × 5¹ × 887¹ × 13¹ × 683¹
LCM(17740,17758) = 157513460