What is the Least Common Multiple of 1040 and 1053?
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 1040 and 1053 is 84240.
LCM(1040,1053) = 84240
Least Common Multiple of 1040 and 1053 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1040 and 1053, than apply into the LCM equation.
GCF(1040,1053) = 13
LCM(1040,1053) = ( 1040 × 1053) / 13
LCM(1040,1053) = 1095120 / 13
LCM(1040,1053) = 84240
Least Common Multiple (LCM) of 1040 and 1053 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 1040 and 1053. First we will calculate the prime factors of 1040 and 1053.
Prime Factorization of 1040
Prime factors of 1040 are 2, 5, 13. Prime factorization of 1040 in exponential form is:
1040 = 24 × 51 × 131
Prime Factorization of 1053
Prime factors of 1053 are 3, 13. Prime factorization of 1053 in exponential form is:
1053 = 34 × 131
Now multiplying the highest exponent prime factors to calculate the LCM of 1040 and 1053.
LCM(1040,1053) = 24 × 51 × 131 × 34
LCM(1040,1053) = 84240
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