What is the Least Common Multiple of 63815 and 63821?

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 63815 and 63821 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 63815 and 63821, than apply into the LCM equation.

GCF(63815,63821) = 1
LCM(63815,63821) = ( 63815 × 63821) / 1
LCM(63815,63821) = 4072737115 / 1
LCM(63815,63821) = 4072737115

Least Common Multiple (LCM) of 63815 and 63821 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 63815 and 63821. First we will calculate the prime factors of 63815 and 63821.

Prime Factorization of 63815

Prime Factorization of 63821

Now multiplying the highest exponent prime factors to calculate the LCM of 63815 and 63821.

LCM(63815,63821) = 5¹ × 12763¹ × 19¹ × 3359¹
LCM(63815,63821) = 4072737115