What is the Least Common Multiple of 40940 and 40960?

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 40940 and 40960 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40940 and 40960, than apply into the LCM equation.

GCF(40940,40960) = 20
LCM(40940,40960) = ( 40940 × 40960) / 20
LCM(40940,40960) = 1676902400 / 20
LCM(40940,40960) = 83845120

Least Common Multiple (LCM) of 40940 and 40960 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40940 and 40960. First we will calculate the prime factors of 40940 and 40960.

Prime Factorization of 40940

Prime Factorization of 40960

Now multiplying the highest exponent prime factors to calculate the LCM of 40940 and 40960.

LCM(40940,40960) = 2¹³ × 5¹ × 23¹ × 89¹
LCM(40940,40960) = 83845120