What is the Least Common Multiple of 63640 and 63656?

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 63640 and 63656 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 63640 and 63656, than apply into the LCM equation.

GCF(63640,63656) = 8
LCM(63640,63656) = ( 63640 × 63656) / 8
LCM(63640,63656) = 4051067840 / 8
LCM(63640,63656) = 506383480

Least Common Multiple (LCM) of 63640 and 63656 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 63640 and 63656. First we will calculate the prime factors of 63640 and 63656.

Prime Factorization of 63640

Prime Factorization of 63656

Now multiplying the highest exponent prime factors to calculate the LCM of 63640 and 63656.

LCM(63640,63656) = 2³ × 5¹ × 37¹ × 43¹ × 73¹ × 109¹
LCM(63640,63656) = 506383480