LCM for 2, 4 and 16

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Least Common Multiple of
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What's the Least Common Multiple (LCM) of 2, 4 and 16?

Answer

LCM of 2, 4 and 16 is
16

First common multiples: 16, 32, 48, …

16 is divisible by all three: 16 ÷ 2 = 8, 16 ÷ 4 = 4, 16 ÷ 16 = 1 — and 8, 4 and 1 have no factor but 1 common to all of them, so no smaller number is. As a common denominator: multiply the top and bottom of x/2 by 8 and of y/4 by 4.

2 — prime

4 = 22

16 = 24

Prime2416Highest power
22222424

LCM = 24 = 16

See Also

LCM Table

1st2nd3rdLCM
1244
2244
23412
2444
24520
24612
24728
2488
24936
241020
241144
241212
241352
241428
241560
241616
241768
241836
241976
242020
242184
242244
242392
242424
2425100
242652
2427108
242828
2429116
243060

FAQ

What's the Least Common Multiple (LCM) of 2, 4 and 16?

LCM of 2, 4 and 16 is 16

How to find the LCM of 2, 4 and 16 by prime factorization?

Take every prime that appears in 2, 4 and 16 to the highest power it reaches in any one of them and multiply: 2⁴ = 16.

Can you get the LCM of 2, 4 and 16 two numbers at a time?

Yes. The LCM of 2 and 4 is 4, and the LCM of 4 and 16 is 16 — the same answer, because the least common multiple is associative and does not depend on the order of the three numbers.

Is 16 divisible by 2, 4 and 16?

Yes, and by definition it is the smallest positive integer that is: 16 ÷ 2, 16 ÷ 4 and 16 ÷ 16 all come out whole. Any other common multiple of 2, 4 and 16 is a multiple of 16.