LCM for 13 and 19

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What's the Least Common Multiple (LCM) of 13 and 19?

Answer

LCM of 13 and 19 is
247

First common multiples: 247, 494, 741, …

247 is divisible by both: 247 ÷ 13 = 19, 247 ÷ 19 = 13 — and 19 and 13 share no factor but 1, so no smaller number is. As a common denominator: multiply the top and bottom of x/13 by 19 and of y/19 by 13.

13 and 19 are coprime (GCF = 1), so their LCM is simply the product: 13 × 19 = 247.

13 — prime

19 — prime

Prime1319Highest power
1313—13
19—1919

— = power 0: the prime is not a factor of this number; the LCM takes it from the number that has it.

LCM = 13 × 19 = 247

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LCM Table

Number 1Number 2LCM
13678
138104
1314182
1315195
1316208
1317221
1318234
1319247
1320260
1321273
1322286
1323299
1324312
132626
1327351
1330390
1334442
1335455
1337481
133939
1340520
1341533
1342546
1344572
1345585
1347611
1349637
1350650
135252
1356728

FAQ

What's the Least Common Multiple (LCM) of 13 and 19?

LCM of 13 and 19 is 247

How to find the LCM of 13 and 19 using prime factorization?

To find the LCM of 13 and 19, find all prime factors of both numbers, then multiply the highest power of each prime factor. The result is 247.

What is the difference between LCM and GCF?

LCM (Least Common Multiple) is the smallest number divisible by both numbers, while GCF (Greatest Common Factor) is the largest number that divides both. For 13 and 19: LCM = 247, GCF = 1.

See Also