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What is the Least Common Multiple of 42251 and 42270?

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 42251 and 42270 is 1785949770.

LCM(42251,42270) = 1785949770

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Least Common Multiple of 42251 and 42270 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42251 and 42270, than apply into the LCM equation.

GCF(42251,42270) = 1
LCM(42251,42270) = ( 42251 × 42270) / 1
LCM(42251,42270) = 1785949770 / 1
LCM(42251,42270) = 1785949770

Least Common Multiple (LCM) of 42251 and 42270 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42251 and 42270. First we will calculate the prime factors of 42251 and 42270.

Prime Factorization of 42251

Prime factors of 42251 are 11, 23, 167. Prime factorization of 42251 in exponential form is:

42251 = 111 × 231 × 1671

Prime Factorization of 42270

Prime factors of 42270 are 2, 3, 5, 1409. Prime factorization of 42270 in exponential form is:

42270 = 21 × 31 × 51 × 14091

Now multiplying the highest exponent prime factors to calculate the LCM of 42251 and 42270.

LCM(42251,42270) = 111 × 231 × 1671 × 21 × 31 × 51 × 14091
LCM(42251,42270) = 1785949770