What is the Least Common Multiple of 56390 and 56405?

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 56390 and 56405 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 56390 and 56405, than apply into the LCM equation.

GCF(56390,56405) = 5
LCM(56390,56405) = ( 56390 × 56405) / 5
LCM(56390,56405) = 3180677950 / 5
LCM(56390,56405) = 636135590

Least Common Multiple (LCM) of 56390 and 56405 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 56390 and 56405. First we will calculate the prime factors of 56390 and 56405.

Prime Factorization of 56390

Prime Factorization of 56405

Now multiplying the highest exponent prime factors to calculate the LCM of 56390 and 56405.

LCM(56390,56405) = 2¹ × 5¹ × 5639¹ × 29¹ × 389¹
LCM(56390,56405) = 636135590