LCM for 29 and 31

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What's the Least Common Multiple (LCM) of 29 and 31?

Answer

LCM of 29 and 31 is
899

First common multiples: 899; 1,798; 2,697; …

899 is divisible by both: 899 ÷ 29 = 31, 899 ÷ 31 = 29 — and 31 and 29 share no factor but 1, so no smaller number is. As a common denominator: multiply the top and bottom of x/29 by 31 and of y/31 by 29.

29 and 31 are coprime (GCF = 1), so their LCM is simply the product: 29 × 31 = 899.

29 — prime

31 — prime

Prime2931Highest power
2929—29
31—3131

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

LCM = 29 × 31 = 899

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LCM Table

Number 1Number 2LCM
2930870
2931899
2933957
2934986
29361,044
29371,073
29381,102
29401,160
29431,247
29451,305
29461,334
29471,363
29531,537
29551,595
29561,624
29571,653
29591,711
29601,740
291002,900

FAQ

What's the Least Common Multiple (LCM) of 29 and 31?

LCM of 29 and 31 is 899

How to find the LCM of 29 and 31 using prime factorization?

To find the LCM of 29 and 31, find all prime factors of both numbers, then multiply the highest power of each prime factor. The result is 899.

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 29 and 31: LCM = 899, GCF = 1.

See Also