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What is the Least Common Multiple of 980 and 996?

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 980 and 996 is 244020.

LCM(980,996) = 244020

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Least Common Multiple of 980 and 996 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 980 and 996, than apply into the LCM equation.

GCF(980,996) = 4
LCM(980,996) = ( 980 × 996) / 4
LCM(980,996) = 976080 / 4
LCM(980,996) = 244020

Least Common Multiple (LCM) of 980 and 996 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 980 and 996. First we will calculate the prime factors of 980 and 996.

Prime Factorization of 980

Prime factors of 980 are 2, 5, 7. Prime factorization of 980 in exponential form is:

980 = 22 × 51 × 72

Prime Factorization of 996

Prime factors of 996 are 2, 3, 83. Prime factorization of 996 in exponential form is:

996 = 22 × 31 × 831

Now multiplying the highest exponent prime factors to calculate the LCM of 980 and 996.

LCM(980,996) = 22 × 51 × 72 × 31 × 831
LCM(980,996) = 244020