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What is the Least Common Multiple of 70642 and 70651?

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 70642 and 70651 is 4990927942.

LCM(70642,70651) = 4990927942

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Least Common Multiple of 70642 and 70651 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70642 and 70651, than apply into the LCM equation.

GCF(70642,70651) = 1
LCM(70642,70651) = ( 70642 × 70651) / 1
LCM(70642,70651) = 4990927942 / 1
LCM(70642,70651) = 4990927942

Least Common Multiple (LCM) of 70642 and 70651 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70642 and 70651. First we will calculate the prime factors of 70642 and 70651.

Prime Factorization of 70642

Prime factors of 70642 are 2, 11, 13, 19. Prime factorization of 70642 in exponential form is:

70642 = 21 × 111 × 132 × 191

Prime Factorization of 70651

Prime factors of 70651 are 7, 10093. Prime factorization of 70651 in exponential form is:

70651 = 71 × 100931

Now multiplying the highest exponent prime factors to calculate the LCM of 70642 and 70651.

LCM(70642,70651) = 21 × 111 × 132 × 191 × 71 × 100931
LCM(70642,70651) = 4990927942