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What is the Least Common Multiple of 693 and 706?

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 693 and 706 is 489258.

LCM(693,706) = 489258

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Least Common Multiple of 693 and 706 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 693 and 706, than apply into the LCM equation.

GCF(693,706) = 1
LCM(693,706) = ( 693 × 706) / 1
LCM(693,706) = 489258 / 1
LCM(693,706) = 489258

Least Common Multiple (LCM) of 693 and 706 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 693 and 706. First we will calculate the prime factors of 693 and 706.

Prime Factorization of 693

Prime factors of 693 are 3, 7, 11. Prime factorization of 693 in exponential form is:

693 = 32 × 71 × 111

Prime Factorization of 706

Prime factors of 706 are 2, 353. Prime factorization of 706 in exponential form is:

706 = 21 × 3531

Now multiplying the highest exponent prime factors to calculate the LCM of 693 and 706.

LCM(693,706) = 32 × 71 × 111 × 21 × 3531
LCM(693,706) = 489258