What is the Least Common Multiple of 86821 and 86831?

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 86821 and 86831 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 86821 and 86831, than apply into the LCM equation.

GCF(86821,86831) = 1
LCM(86821,86831) = ( 86821 × 86831) / 1
LCM(86821,86831) = 7538754251 / 1
LCM(86821,86831) = 7538754251

Least Common Multiple (LCM) of 86821 and 86831 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 86821 and 86831. First we will calculate the prime factors of 86821 and 86831.

Prime Factorization of 86821

Prime Factorization of 86831

Now multiplying the highest exponent prime factors to calculate the LCM of 86821 and 86831.

LCM(86821,86831) = 7¹ × 79¹ × 157¹ × 31¹ × 2801¹
LCM(86821,86831) = 7538754251