GCF and LCM Calculator Logo

What is the Least Common Multiple of 5640 and 5654?

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 5640 and 5654 is 15944280.

LCM(5640,5654) = 15944280

LCM Calculator and
and

Least Common Multiple of 5640 and 5654 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 5640 and 5654, than apply into the LCM equation.

GCF(5640,5654) = 2
LCM(5640,5654) = ( 5640 × 5654) / 2
LCM(5640,5654) = 31888560 / 2
LCM(5640,5654) = 15944280

Least Common Multiple (LCM) of 5640 and 5654 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 5640 and 5654. First we will calculate the prime factors of 5640 and 5654.

Prime Factorization of 5640

Prime factors of 5640 are 2, 3, 5, 47. Prime factorization of 5640 in exponential form is:

5640 = 23 × 31 × 51 × 471

Prime Factorization of 5654

Prime factors of 5654 are 2, 11, 257. Prime factorization of 5654 in exponential form is:

5654 = 21 × 111 × 2571

Now multiplying the highest exponent prime factors to calculate the LCM of 5640 and 5654.

LCM(5640,5654) = 23 × 31 × 51 × 471 × 111 × 2571
LCM(5640,5654) = 15944280