LCM for 32 and 80

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What's the Least Common Multiple (LCM) of 32 and 80?

Answer

LCM of 32 and 80 is
160

First common multiples: 160, 320, 480, …

160 is divisible by both: 160 ÷ 32 = 5, 160 ÷ 80 = 2 — and 5 and 2 share no factor but 1, so no smaller number is. As a common denominator: multiply the top and bottom of x/32 by 5 and of y/80 by 2.

32 = 25

80 = 24 × 5

Prime3280Highest power
2252425
5—55

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

LCM = 25 × 5 = 160

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LCM Table

Number 1Number 2LCM
3236288
32371,184
3238608
32391,248
3240160
3242672
32451,440
32471,504
324896
32491,568
32531,696
3254864
3256224
3258928
32591,888
3260480
3272288
3280160
32812,592
3284672
32901,440
329696
32128128
32176352

FAQ

What's the Least Common Multiple (LCM) of 32 and 80?

LCM of 32 and 80 is 160

How to find the LCM of 32 and 80 using prime factorization?

To find the LCM of 32 and 80, find all prime factors of both numbers, then multiply the highest power of each prime factor. The result is 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 32 and 80: LCM = 160, GCF = 16.

See Also