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What is the Least Common Multiple of 7960 and 7979?

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 7960 and 7979 is 63512840.

LCM(7960,7979) = 63512840

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Least Common Multiple of 7960 and 7979 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7960 and 7979, than apply into the LCM equation.

GCF(7960,7979) = 1
LCM(7960,7979) = ( 7960 × 7979) / 1
LCM(7960,7979) = 63512840 / 1
LCM(7960,7979) = 63512840

Least Common Multiple (LCM) of 7960 and 7979 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7960 and 7979. First we will calculate the prime factors of 7960 and 7979.

Prime Factorization of 7960

Prime factors of 7960 are 2, 5, 199. Prime factorization of 7960 in exponential form is:

7960 = 23 × 51 × 1991

Prime Factorization of 7979

Prime factors of 7979 are 79, 101. Prime factorization of 7979 in exponential form is:

7979 = 791 × 1011

Now multiplying the highest exponent prime factors to calculate the LCM of 7960 and 7979.

LCM(7960,7979) = 23 × 51 × 1991 × 791 × 1011
LCM(7960,7979) = 63512840