LCM for 2, 8 and 10

"Least Common Multiple of 3 Numbers" Calculator

What's the Least Common Multiple (LCM) of 2, 8 and 10?

Answer

LCM of 2, 8 and 10 is

First common multiples: 40, 80, 120, …

40 is divisible by all three: 40 ÷ 2 = 20, 40 ÷ 8 = 5, 40 ÷ 10 = 4 — and 20, 5 and 4 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 20 and of y/8 by 5 and of z/10 by 4.

2 — prime

8 = 2³

10 = 2 × 5

Prime	2	8	10	Highest power
2	2	2³	2	2³
5	—	—	5	5

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

LCM = 2³ × 5 = 40

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Related Calculations

LCM Table

1st	2nd	3rd	LCM
1	2	8	8
2	2	8	8
2	3	8	24
2	4	8	8
2	5	8	40
2	6	8	24
2	7	8	56
2	8	8	8
2	8	9	72
2	8	10	40
2	8	11	88
2	8	12	24
2	8	13	104
2	8	14	56
2	8	15	120
2	8	16	16
2	8	17	136
2	8	18	72
2	8	19	152
2	8	20	40
2	8	21	168
2	8	22	88
2	8	23	184
2	8	24	24
2	8	25	200
2	8	26	104
2	8	27	216
2	8	28	56
2	8	29	232
2	8	30	120

FAQ

What's the Least Common Multiple (LCM) of 2, 8 and 10?

LCM of 2, 8 and 10 is 40

How to find the LCM of 2, 8 and 10 by prime factorization?

Take every prime that appears in 2, 8 and 10 to the highest power it reaches in any one of them and multiply: 2³ × 5 = 40.

Can you get the LCM of 2, 8 and 10 two numbers at a time?

Yes. The LCM of 2 and 8 is 8, and the LCM of 8 and 10 is 40 — the same answer, because the least common multiple is associative and does not depend on the order of the three numbers.

Is 40 divisible by 2, 8 and 10?

Yes, and by definition it is the smallest positive integer that is: 40 ÷ 2, 40 ÷ 8 and 40 ÷ 10 all come out whole. Any other common multiple of 2, 8 and 10 is a multiple of 40.

LCM for 2, 8 and 10

What's the Least Common Multiple (LCM) of 2, 8 and 10?

More with these numbers

Related Calculations

See Also

LCM Table

FAQ

What's the Least Common Multiple (LCM) of 2, 8 and 10?

How to find the LCM of 2, 8 and 10 by prime factorization?

Can you get the LCM of 2, 8 and 10 two numbers at a time?

Is 40 divisible by 2, 8 and 10?

See Also

1st	2nd	3rd	LCM
1	2	8	8
2	2	8	8
2	3	8	24
2	4	8	8
2	5	8	40
2	6	8	24
2	7	8	56
2	8	8	8
2	8	9	72
2	8	10	40
2	8	11	88
2	8	12	24
2	8	13	104
2	8	14	56
2	8	15	120
2	8	16	16
2	8	17	136
2	8	18	72
2	8	19	152
2	8	20	40
2	8	21	168
2	8	22	88
2	8	23	184
2	8	24	24
2	8	25	200
2	8	26	104
2	8	27	216
2	8	28	56
2	8	29	232
2	8	30	120

1st	2nd	3rd	LCM
1	2	8	8
2	2	8	8
2	3	8	24
2	4	8	8
2	5	8	40
2	6	8	24
2	7	8	56
2	8	8	8
2	8	9	72
2	8	10	40
2	8	11	88
2	8	12	24
2	8	13	104
2	8	14	56
2	8	15	120
2	8	16	16
2	8	17	136
2	8	18	72
2	8	19	152
2	8	20	40
2	8	21	168
2	8	22	88
2	8	23	184
2	8	24	24
2	8	25	200
2	8	26	104
2	8	27	216
2	8	28	56
2	8	29	232
2	8	30	120

1st	2nd	3rd	LCM
1	2	8	8
2	2	8	8
2	3	8	24
2	4	8	8
2	5	8	40
2	6	8	24
2	7	8	56
2	8	8	8
2	8	9	72
2	8	10	40
2	8	11	88
2	8	12	24
2	8	13	104
2	8	14	56
2	8	15	120
2	8	16	16
2	8	17	136
2	8	18	72
2	8	19	152
2	8	20	40
2	8	21	168
2	8	22	88
2	8	23	184
2	8	24	24
2	8	25	200
2	8	26	104
2	8	27	216
2	8	28	56
2	8	29	232
2	8	30	120