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What is the Least Common Multiple of 79963 and 79980?

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 79963 and 79980 is 6395440740.

LCM(79963,79980) = 6395440740

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Least Common Multiple of 79963 and 79980 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79963 and 79980, than apply into the LCM equation.

GCF(79963,79980) = 1
LCM(79963,79980) = ( 79963 × 79980) / 1
LCM(79963,79980) = 6395440740 / 1
LCM(79963,79980) = 6395440740

Least Common Multiple (LCM) of 79963 and 79980 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79963 and 79980. First we will calculate the prime factors of 79963 and 79980.

Prime Factorization of 79963

Prime factors of 79963 are 13, 6151. Prime factorization of 79963 in exponential form is:

79963 = 131 × 61511

Prime Factorization of 79980

Prime factors of 79980 are 2, 3, 5, 31, 43. Prime factorization of 79980 in exponential form is:

79980 = 22 × 31 × 51 × 311 × 431

Now multiplying the highest exponent prime factors to calculate the LCM of 79963 and 79980.

LCM(79963,79980) = 131 × 61511 × 22 × 31 × 51 × 311 × 431
LCM(79963,79980) = 6395440740