GCF and LCM Calculator Logo

What is the Least Common Multiple of 42951 and 42955?

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 (LCM) of 42951 and 42955 is 1844960205.

LCM(42951,42955) = 1844960205

LCM Calculator and
and

Least Common Multiple of 42951 and 42955 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42951 and 42955, than apply into the LCM equation.

GCF(42951,42955) = 1
LCM(42951,42955) = ( 42951 × 42955) / 1
LCM(42951,42955) = 1844960205 / 1
LCM(42951,42955) = 1844960205

Least Common Multiple (LCM) of 42951 and 42955 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42951 and 42955. First we will calculate the prime factors of 42951 and 42955.

Prime Factorization of 42951

Prime factors of 42951 are 3, 103, 139. Prime factorization of 42951 in exponential form is:

42951 = 31 × 1031 × 1391

Prime Factorization of 42955

Prime factors of 42955 are 5, 11, 71. Prime factorization of 42955 in exponential form is:

42955 = 51 × 112 × 711

Now multiplying the highest exponent prime factors to calculate the LCM of 42951 and 42955.

LCM(42951,42955) = 31 × 1031 × 1391 × 51 × 112 × 711
LCM(42951,42955) = 1844960205