What is the Least Common Multiple of 86421 and 86429?

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 86421 and 86429 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 86421 and 86429, than apply into the LCM equation.

GCF(86421,86429) = 1
LCM(86421,86429) = ( 86421 × 86429) / 1
LCM(86421,86429) = 7469280609 / 1
LCM(86421,86429) = 7469280609

Least Common Multiple (LCM) of 86421 and 86429 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 86421 and 86429. First we will calculate the prime factors of 86421 and 86429.

Prime Factorization of 86421

Prime Factorization of 86429

Now multiplying the highest exponent prime factors to calculate the LCM of 86421 and 86429.

LCM(86421,86429) = 3¹ × 28807¹ × 7¹ × 12347¹
LCM(86421,86429) = 7469280609