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What is the Least Common Multiple of 71641 and 71646?

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 71641 and 71646 is 5132791086.

LCM(71641,71646) = 5132791086

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Least Common Multiple of 71641 and 71646 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71641 and 71646, than apply into the LCM equation.

GCF(71641,71646) = 1
LCM(71641,71646) = ( 71641 × 71646) / 1
LCM(71641,71646) = 5132791086 / 1
LCM(71641,71646) = 5132791086

Least Common Multiple (LCM) of 71641 and 71646 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71641 and 71646. First we will calculate the prime factors of 71641 and 71646.

Prime Factorization of 71641

Prime factors of 71641 are 31, 2311. Prime factorization of 71641 in exponential form is:

71641 = 311 × 23111

Prime Factorization of 71646

Prime factors of 71646 are 2, 3, 11941. Prime factorization of 71646 in exponential form is:

71646 = 21 × 31 × 119411

Now multiplying the highest exponent prime factors to calculate the LCM of 71641 and 71646.

LCM(71641,71646) = 311 × 23111 × 21 × 31 × 119411
LCM(71641,71646) = 5132791086