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What is the Least Common Multiple of 980 and 984?

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 984 is 241080.

LCM(980,984) = 241080

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Least Common Multiple of 980 and 984 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 984, than apply into the LCM equation.

GCF(980,984) = 4
LCM(980,984) = ( 980 × 984) / 4
LCM(980,984) = 964320 / 4
LCM(980,984) = 241080

Least Common Multiple (LCM) of 980 and 984 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 980 and 984. First we will calculate the prime factors of 980 and 984.

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 984

Prime factors of 984 are 2, 3, 41. Prime factorization of 984 in exponential form is:

984 = 23 × 31 × 411

Now multiplying the highest exponent prime factors to calculate the LCM of 980 and 984.

LCM(980,984) = 23 × 51 × 72 × 31 × 411
LCM(980,984) = 241080