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What is the Least Common Multiple of 79940 and 79949?

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 79940 and 79949 is 6391123060.

LCM(79940,79949) = 6391123060

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Least Common Multiple of 79940 and 79949 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79940 and 79949, than apply into the LCM equation.

GCF(79940,79949) = 1
LCM(79940,79949) = ( 79940 × 79949) / 1
LCM(79940,79949) = 6391123060 / 1
LCM(79940,79949) = 6391123060

Least Common Multiple (LCM) of 79940 and 79949 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79940 and 79949. First we will calculate the prime factors of 79940 and 79949.

Prime Factorization of 79940

Prime factors of 79940 are 2, 5, 7, 571. Prime factorization of 79940 in exponential form is:

79940 = 22 × 51 × 71 × 5711

Prime Factorization of 79949

Prime factors of 79949 are 31, 2579. Prime factorization of 79949 in exponential form is:

79949 = 311 × 25791

Now multiplying the highest exponent prime factors to calculate the LCM of 79940 and 79949.

LCM(79940,79949) = 22 × 51 × 71 × 5711 × 311 × 25791
LCM(79940,79949) = 6391123060