What is the Least Common Multiple of 42970 and 42976?

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 42970 and 42976 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42970 and 42976, than apply into the LCM equation.

GCF(42970,42976) = 2
LCM(42970,42976) = ( 42970 × 42976) / 2
LCM(42970,42976) = 1846678720 / 2
LCM(42970,42976) = 923339360

Least Common Multiple (LCM) of 42970 and 42976 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42970 and 42976. First we will calculate the prime factors of 42970 and 42976.

Prime Factorization of 42970

Prime Factorization of 42976

Now multiplying the highest exponent prime factors to calculate the LCM of 42970 and 42976.

LCM(42970,42976) = 2⁵ × 5¹ × 4297¹ × 17¹ × 79¹
LCM(42970,42976) = 923339360