GCF and LCM Calculator Logo

What is the Least Common Multiple of 65646 and 65665?

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 (LCM) of 65646 and 65665 is 4310644590.

LCM(65646,65665) = 4310644590

LCM Calculator and
and

Least Common Multiple of 65646 and 65665 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65646 and 65665, than apply into the LCM equation.

GCF(65646,65665) = 1
LCM(65646,65665) = ( 65646 × 65665) / 1
LCM(65646,65665) = 4310644590 / 1
LCM(65646,65665) = 4310644590

Least Common Multiple (LCM) of 65646 and 65665 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65646 and 65665. First we will calculate the prime factors of 65646 and 65665.

Prime Factorization of 65646

Prime factors of 65646 are 2, 3, 7, 521. Prime factorization of 65646 in exponential form is:

65646 = 21 × 32 × 71 × 5211

Prime Factorization of 65665

Prime factors of 65665 are 5, 23, 571. Prime factorization of 65665 in exponential form is:

65665 = 51 × 231 × 5711

Now multiplying the highest exponent prime factors to calculate the LCM of 65646 and 65665.

LCM(65646,65665) = 21 × 32 × 71 × 5211 × 51 × 231 × 5711
LCM(65646,65665) = 4310644590