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What is the Least Common Multiple of 42355 and 42369?

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 42355 and 42369 is 1794538995.

LCM(42355,42369) = 1794538995

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Least Common Multiple of 42355 and 42369 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42355 and 42369, than apply into the LCM equation.

GCF(42355,42369) = 1
LCM(42355,42369) = ( 42355 × 42369) / 1
LCM(42355,42369) = 1794538995 / 1
LCM(42355,42369) = 1794538995

Least Common Multiple (LCM) of 42355 and 42369 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42355 and 42369. First we will calculate the prime factors of 42355 and 42369.

Prime Factorization of 42355

Prime factors of 42355 are 5, 43, 197. Prime factorization of 42355 in exponential form is:

42355 = 51 × 431 × 1971

Prime Factorization of 42369

Prime factors of 42369 are 3, 29, 487. Prime factorization of 42369 in exponential form is:

42369 = 31 × 291 × 4871

Now multiplying the highest exponent prime factors to calculate the LCM of 42355 and 42369.

LCM(42355,42369) = 51 × 431 × 1971 × 31 × 291 × 4871
LCM(42355,42369) = 1794538995