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What is the Least Common Multiple of 66646 and 66666?

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 66646 and 66666 is 2221511118.

LCM(66646,66666) = 2221511118

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Least Common Multiple of 66646 and 66666 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66646 and 66666, than apply into the LCM equation.

GCF(66646,66666) = 2
LCM(66646,66666) = ( 66646 × 66666) / 2
LCM(66646,66666) = 4443022236 / 2
LCM(66646,66666) = 2221511118

Least Common Multiple (LCM) of 66646 and 66666 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66646 and 66666. First we will calculate the prime factors of 66646 and 66666.

Prime Factorization of 66646

Prime factors of 66646 are 2, 47, 709. Prime factorization of 66646 in exponential form is:

66646 = 21 × 471 × 7091

Prime Factorization of 66666

Prime factors of 66666 are 2, 3, 41, 271. Prime factorization of 66666 in exponential form is:

66666 = 21 × 31 × 411 × 2711

Now multiplying the highest exponent prime factors to calculate the LCM of 66646 and 66666.

LCM(66646,66666) = 21 × 471 × 7091 × 31 × 411 × 2711
LCM(66646,66666) = 2221511118