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What is the Least Common Multiple of 8970 and 8980?

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 8970 and 8980 is 8055060.

LCM(8970,8980) = 8055060

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Least Common Multiple of 8970 and 8980 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8970 and 8980, than apply into the LCM equation.

GCF(8970,8980) = 10
LCM(8970,8980) = ( 8970 × 8980) / 10
LCM(8970,8980) = 80550600 / 10
LCM(8970,8980) = 8055060

Least Common Multiple (LCM) of 8970 and 8980 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8970 and 8980. First we will calculate the prime factors of 8970 and 8980.

Prime Factorization of 8970

Prime factors of 8970 are 2, 3, 5, 13, 23. Prime factorization of 8970 in exponential form is:

8970 = 21 × 31 × 51 × 131 × 231

Prime Factorization of 8980

Prime factors of 8980 are 2, 5, 449. Prime factorization of 8980 in exponential form is:

8980 = 22 × 51 × 4491

Now multiplying the highest exponent prime factors to calculate the LCM of 8970 and 8980.

LCM(8970,8980) = 22 × 31 × 51 × 131 × 231 × 4491
LCM(8970,8980) = 8055060