What is the Least Common Multiple of 39515 and 39521?

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 39515 and 39521 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39515 and 39521, than apply into the LCM equation.

GCF(39515,39521) = 1
LCM(39515,39521) = ( 39515 × 39521) / 1
LCM(39515,39521) = 1561672315 / 1
LCM(39515,39521) = 1561672315

Least Common Multiple (LCM) of 39515 and 39521 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39515 and 39521. First we will calculate the prime factors of 39515 and 39521.

Prime Factorization of 39515

Prime Factorization of 39521

Now multiplying the highest exponent prime factors to calculate the LCM of 39515 and 39521.

LCM(39515,39521) = 5¹ × 7¹ × 1129¹ × 39521¹
LCM(39515,39521) = 1561672315