What is the Least Common Multiple of 45402 and 45420?

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 45402 and 45420 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 45402 and 45420, than apply into the LCM equation.

GCF(45402,45420) = 6
LCM(45402,45420) = ( 45402 × 45420) / 6
LCM(45402,45420) = 2062158840 / 6
LCM(45402,45420) = 343693140

Least Common Multiple (LCM) of 45402 and 45420 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 45402 and 45420. First we will calculate the prime factors of 45402 and 45420.

Prime Factorization of 45402

Prime Factorization of 45420

Now multiplying the highest exponent prime factors to calculate the LCM of 45402 and 45420.

LCM(45402,45420) = 2² × 3¹ × 7¹ × 23¹ × 47¹ × 5¹ × 757¹
LCM(45402,45420) = 343693140