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What is the Least Common Multiple of 42518 and 42522?

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 42518 and 42522 is 903975198.

LCM(42518,42522) = 903975198

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Least Common Multiple of 42518 and 42522 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42518 and 42522, than apply into the LCM equation.

GCF(42518,42522) = 2
LCM(42518,42522) = ( 42518 × 42522) / 2
LCM(42518,42522) = 1807950396 / 2
LCM(42518,42522) = 903975198

Least Common Multiple (LCM) of 42518 and 42522 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42518 and 42522. First we will calculate the prime factors of 42518 and 42522.

Prime Factorization of 42518

Prime factors of 42518 are 2, 7, 3037. Prime factorization of 42518 in exponential form is:

42518 = 21 × 71 × 30371

Prime Factorization of 42522

Prime factors of 42522 are 2, 3, 19, 373. Prime factorization of 42522 in exponential form is:

42522 = 21 × 31 × 191 × 3731

Now multiplying the highest exponent prime factors to calculate the LCM of 42518 and 42522.

LCM(42518,42522) = 21 × 71 × 30371 × 31 × 191 × 3731
LCM(42518,42522) = 903975198