What is the Least Common Multiple of 247 and 253?
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 247 and 253 is 62491.
LCM(247,253) = 62491
Least Common Multiple of 247 and 253 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 247 and 253, than apply into the LCM equation.
GCF(247,253) = 1
LCM(247,253) = ( 247 × 253) / 1
LCM(247,253) = 62491 / 1
LCM(247,253) = 62491
Least Common Multiple (LCM) of 247 and 253 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 247 and 253. First we will calculate the prime factors of 247 and 253.
Prime Factorization of 247
Prime factors of 247 are 13, 19. Prime factorization of 247 in exponential form is:
247 = 131 × 191
Prime Factorization of 253
Prime factors of 253 are 11, 23. Prime factorization of 253 in exponential form is:
253 = 111 × 231
Now multiplying the highest exponent prime factors to calculate the LCM of 247 and 253.
LCM(247,253) = 131 × 191 × 111 × 231
LCM(247,253) = 62491
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