What is the Least Common Multiple of 40705 and 40715?

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 40705 and 40715 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40705 and 40715, than apply into the LCM equation.

GCF(40705,40715) = 5
LCM(40705,40715) = ( 40705 × 40715) / 5
LCM(40705,40715) = 1657304075 / 5
LCM(40705,40715) = 331460815

Least Common Multiple (LCM) of 40705 and 40715 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40705 and 40715. First we will calculate the prime factors of 40705 and 40715.

Prime Factorization of 40705

Prime Factorization of 40715

Now multiplying the highest exponent prime factors to calculate the LCM of 40705 and 40715.

LCM(40705,40715) = 5¹ × 7¹ × 1163¹ × 17¹ × 479¹
LCM(40705,40715) = 331460815