What is the LCM of 2, 5 and 20?

What's the Least Common Multiple (LCM) of 2, 5 and 20?

Answer

LCM of 2, 5 and 20 is

20

First common multiples: 20, 40, 60, …

20 is divisible by all three: 20 ÷ 2 = 10, 20 ÷ 5 = 4, 20 ÷ 20 = 1 — and 10, 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 10 and of y/5 by 4.

2 — prime

5 — prime

20 = 2² × 5

Prime	2	5	20	Highest power
2	2	—	2²	2²
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 × 5 = 20

More with these numbers

Related Calculations

LCM Table

1st	2nd	3rd	LCM
2	5	5	10
2	5	6	30
2	5	7	70
2	5	8	40
2	5	9	90
2	5	10	10
2	5	11	110
2	5	12	60
2	5	13	130
2	5	14	70
2	5	15	30
2	5	16	80
2	5	17	170
2	5	18	90
2	5	19	190
2	5	20	20
2	5	21	210
2	5	22	110
2	5	23	230
2	5	24	120
2	5	25	50
2	5	26	130
2	5	27	270
2	5	28	140
2	5	29	290
2	5	30	30
2	5	31	310
2	5	32	160
2	5	33	330
2	5	34	170

LCM for 2, 5 and 20

What's the Least Common Multiple (LCM) of 2, 5 and 20?

More with these numbers

Related Calculations

See Also

LCM Table

FAQ

What's the Least Common Multiple (LCM) of 2, 5 and 20?

How to find the LCM of 2, 5 and 20 by prime factorization?

Can you get the LCM of 2, 5 and 20 two numbers at a time?

Is 20 divisible by 2, 5 and 20?

See Also

1st	2nd	3rd	LCM
2	5	5	10
2	5	6	30
2	5	7	70
2	5	8	40
2	5	9	90
2	5	10	10
2	5	11	110
2	5	12	60
2	5	13	130
2	5	14	70
2	5	15	30
2	5	16	80
2	5	17	170
2	5	18	90
2	5	19	190
2	5	20	20
2	5	21	210
2	5	22	110
2	5	23	230
2	5	24	120
2	5	25	50
2	5	26	130
2	5	27	270
2	5	28	140
2	5	29	290
2	5	30	30
2	5	31	310
2	5	32	160
2	5	33	330
2	5	34	170

1st	2nd	3rd	LCM
2	5	5	10
2	5	6	30
2	5	7	70
2	5	8	40
2	5	9	90
2	5	10	10
2	5	11	110
2	5	12	60
2	5	13	130
2	5	14	70
2	5	15	30
2	5	16	80
2	5	17	170
2	5	18	90
2	5	19	190
2	5	20	20
2	5	21	210
2	5	22	110
2	5	23	230
2	5	24	120
2	5	25	50
2	5	26	130
2	5	27	270
2	5	28	140
2	5	29	290
2	5	30	30
2	5	31	310
2	5	32	160
2	5	33	330
2	5	34	170

1st	2nd	3rd	LCM
2	5	5	10
2	5	6	30
2	5	7	70
2	5	8	40
2	5	9	90
2	5	10	10
2	5	11	110
2	5	12	60
2	5	13	130
2	5	14	70
2	5	15	30
2	5	16	80
2	5	17	170
2	5	18	90
2	5	19	190
2	5	20	20
2	5	21	210
2	5	22	110
2	5	23	230
2	5	24	120
2	5	25	50
2	5	26	130
2	5	27	270
2	5	28	140
2	5	29	290
2	5	30	30
2	5	31	310
2	5	32	160
2	5	33	330
2	5	34	170