What is the LCM of 10, 20 and 30?

What's the Least Common Multiple (LCM) of 10, 20 and 30?

Answer

LCM of 10, 20 and 30 is

60

First common multiples: 60, 120, 180, …

60 is divisible by all three: 60 ÷ 10 = 6, 60 ÷ 20 = 3, 60 ÷ 30 = 2 — and 6, 3 and 2 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/10 by 6 and of y/20 by 3 and of z/30 by 2.

10 = 2 × 5

20 = 2² × 5

30 = 2 × 3 × 5

Prime	10	20	30	Highest power
2	2	2²	2	2²
3	—	—	3	3
5	5	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 = 2² × 3 × 5 = 60

More with these numbers

Related Calculations

LCM Table

1st	2nd	3rd	LCM
10	15	20	60
10	16	20	80
10	17	20	340
10	18	20	180
10	19	20	380
10	20	20	20
10	20	21	420
10	20	22	220
10	20	23	460
10	20	24	120
10	20	25	100
10	20	26	260
10	20	27	540
10	20	28	140
10	20	29	580
10	20	30	60
10	20	31	620
10	20	32	160
10	20	33	660
10	20	34	340
10	20	35	140
10	20	36	180
10	20	37	740
10	20	38	380
10	20	39	780
10	20	40	40
10	20	41	820
10	20	42	420
10	20	43	860
10	20	44	220

LCM for 10, 20 and 30

What's the Least Common Multiple (LCM) of 10, 20 and 30?

More with these numbers

Related Calculations

See Also

LCM Table

FAQ

What's the Least Common Multiple (LCM) of 10, 20 and 30?

How to find the LCM of 10, 20 and 30 by prime factorization?

Can you get the LCM of 10, 20 and 30 two numbers at a time?

Is 60 divisible by 10, 20 and 30?

See Also

1st	2nd	3rd	LCM
10	15	20	60
10	16	20	80
10	17	20	340
10	18	20	180
10	19	20	380
10	20	20	20
10	20	21	420
10	20	22	220
10	20	23	460
10	20	24	120
10	20	25	100
10	20	26	260
10	20	27	540
10	20	28	140
10	20	29	580
10	20	30	60
10	20	31	620
10	20	32	160
10	20	33	660
10	20	34	340
10	20	35	140
10	20	36	180
10	20	37	740
10	20	38	380
10	20	39	780
10	20	40	40
10	20	41	820
10	20	42	420
10	20	43	860
10	20	44	220

1st	2nd	3rd	LCM
10	15	20	60
10	16	20	80
10	17	20	340
10	18	20	180
10	19	20	380
10	20	20	20
10	20	21	420
10	20	22	220
10	20	23	460
10	20	24	120
10	20	25	100
10	20	26	260
10	20	27	540
10	20	28	140
10	20	29	580
10	20	30	60
10	20	31	620
10	20	32	160
10	20	33	660
10	20	34	340
10	20	35	140
10	20	36	180
10	20	37	740
10	20	38	380
10	20	39	780
10	20	40	40
10	20	41	820
10	20	42	420
10	20	43	860
10	20	44	220

1st	2nd	3rd	LCM
10	15	20	60
10	16	20	80
10	17	20	340
10	18	20	180
10	19	20	380
10	20	20	20
10	20	21	420
10	20	22	220
10	20	23	460
10	20	24	120
10	20	25	100
10	20	26	260
10	20	27	540
10	20	28	140
10	20	29	580
10	20	30	60
10	20	31	620
10	20	32	160
10	20	33	660
10	20	34	340
10	20	35	140
10	20	36	180
10	20	37	740
10	20	38	380
10	20	39	780
10	20	40	40
10	20	41	820
10	20	42	420
10	20	43	860
10	20	44	220