What is the Least Common Multiple of 64281 and 64289?

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 64281 and 64289 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64281 and 64289, than apply into the LCM equation.

GCF(64281,64289) = 1
LCM(64281,64289) = ( 64281 × 64289) / 1
LCM(64281,64289) = 4132561209 / 1
LCM(64281,64289) = 4132561209

Least Common Multiple (LCM) of 64281 and 64289 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64281 and 64289. First we will calculate the prime factors of 64281 and 64289.

Prime Factorization of 64281

Prime Factorization of 64289

Now multiplying the highest exponent prime factors to calculate the LCM of 64281 and 64289.

LCM(64281,64289) = 3¹ × 7¹ × 3061¹ × 53¹ × 1213¹
LCM(64281,64289) = 4132561209