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What is the Least Common Multiple of 1201 and 1210?

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 1201 and 1210 is 1453210.

LCM(1201,1210) = 1453210

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Least Common Multiple of 1201 and 1210 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1201 and 1210, than apply into the LCM equation.

GCF(1201,1210) = 1
LCM(1201,1210) = ( 1201 × 1210) / 1
LCM(1201,1210) = 1453210 / 1
LCM(1201,1210) = 1453210

Least Common Multiple (LCM) of 1201 and 1210 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1201 and 1210. First we will calculate the prime factors of 1201 and 1210.

Prime Factorization of 1201

Prime factors of 1201 are 1201. Prime factorization of 1201 in exponential form is:

1201 = 12011

Prime Factorization of 1210

Prime factors of 1210 are 2, 5, 11. Prime factorization of 1210 in exponential form is:

1210 = 21 × 51 × 112

Now multiplying the highest exponent prime factors to calculate the LCM of 1201 and 1210.

LCM(1201,1210) = 12011 × 21 × 51 × 112
LCM(1201,1210) = 1453210