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What is the Least Common Multiple of 79935 and 79940?

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 79935 and 79940 is 1278000780.

LCM(79935,79940) = 1278000780

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Least Common Multiple of 79935 and 79940 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79935 and 79940, than apply into the LCM equation.

GCF(79935,79940) = 5
LCM(79935,79940) = ( 79935 × 79940) / 5
LCM(79935,79940) = 6390003900 / 5
LCM(79935,79940) = 1278000780

Least Common Multiple (LCM) of 79935 and 79940 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79935 and 79940. First we will calculate the prime factors of 79935 and 79940.

Prime Factorization of 79935

Prime factors of 79935 are 3, 5, 73. Prime factorization of 79935 in exponential form is:

79935 = 31 × 51 × 732

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

Now multiplying the highest exponent prime factors to calculate the LCM of 79935 and 79940.

LCM(79935,79940) = 31 × 51 × 732 × 22 × 71 × 5711
LCM(79935,79940) = 1278000780