What is the Least Common Multiple of 63440 and 63457?

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 63440 and 63457 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 63440 and 63457, than apply into the LCM equation.

GCF(63440,63457) = 1
LCM(63440,63457) = ( 63440 × 63457) / 1
LCM(63440,63457) = 4025712080 / 1
LCM(63440,63457) = 4025712080

Least Common Multiple (LCM) of 63440 and 63457 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 63440 and 63457. First we will calculate the prime factors of 63440 and 63457.

Prime Factorization of 63440

Prime Factorization of 63457

Now multiplying the highest exponent prime factors to calculate the LCM of 63440 and 63457.

LCM(63440,63457) = 2⁴ × 5¹ × 13¹ × 61¹ × 23¹ × 31¹ × 89¹
LCM(63440,63457) = 4025712080