LCM for 29 and 40

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What's the Least Common Multiple (LCM) of 29 and 40?

Answer

LCM of 29 and 40 is
1,160

First common multiples: 1,160; 2,320; 3,480; …

1,160 is divisible by both: 1,160 ÷ 29 = 40; 1,160 ÷ 40 = 29 — and 40 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 40 and of y/40 by 29.

29 and 40 are coprime (GCF = 1), so their LCM is simply the product: 29 × 40 = 1,160.

29 — prime

40 = 23 × 5

Prime2940Highest power
2—2323
5—55
2929—29

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

LCM = 23 × 5 × 29 = 1,160

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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 40?

LCM of 29 and 40 is 1,160

How to find the LCM of 29 and 40 using prime factorization?

To find the LCM of 29 and 40, find all prime factors of both numbers, then multiply the highest power of each prime factor. The result is 1,160.

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 40: LCM = 1,160, GCF = 1.

See Also