What is the Least Common Multiple of 61641 and 61647?

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 61641 and 61647 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61641 and 61647, than apply into the LCM equation.

GCF(61641,61647) = 3
LCM(61641,61647) = ( 61641 × 61647) / 3
LCM(61641,61647) = 3799982727 / 3
LCM(61641,61647) = 1266660909

Least Common Multiple (LCM) of 61641 and 61647 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61641 and 61647. First we will calculate the prime factors of 61641 and 61647.

Prime Factorization of 61641

Prime Factorization of 61647

Now multiplying the highest exponent prime factors to calculate the LCM of 61641 and 61647.

LCM(61641,61647) = 3⁴ × 761¹ × 20549¹
LCM(61641,61647) = 1266660909