LCM for 10 and 390
What's the Least Common Multiple (LCM) of 10 and 390?
Answer
(Three hundred ninety)
Finding LCM for 10 and 390 using GCF of these numbers
The first method to find LCM for numbers 10 and 390 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:
LCM = (Number1 × Number2) ÷ GCF
GCF of numbers 10 and 390 is 10, so
LCM = (10 × 390) ÷ 10
LCM = 3900 ÷ 10
LCM = 390
Finding LCM for 10 and 390 by Listing Multiples
The second method to find LCM for numbers 10 and 390 is to list out the common multiples for both numbers and pick the first one that matches:
Multiples of 10: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, 390, 400, 410
Multiples of 390: 390, 780, 1170
So the LCM for 10 and 390 is 390
Finding LCM for 10 and 390 by Prime Factorization
Another method to find LCM for numbers 10 and 390 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:
All Prime Factors of 10: 2, 5 (exponent form: 21, 51)
All Prime Factors of 390: 2, 3, 5, 13 (exponent form: 21, 31, 51, 131)
21 × 51 × 31 × 131 = 390
Related Calculations
See Also
- Greatest Common Factor - Find the Greatest Common Factor (GCF) of two numbers

LCM Table
| Number 1 | Number 2 | LCM |
|---|---|---|
| 1 | 390 | 390 |
| 2 | 390 | 390 |
| 3 | 390 | 390 |
| 4 | 390 | 780 |
| 5 | 390 | 390 |
| 6 | 390 | 390 |
| 7 | 390 | 2730 |
| 8 | 390 | 1560 |
| 9 | 390 | 1170 |
| 10 | 390 | 390 |
| 11 | 390 | 4290 |
| 12 | 390 | 780 |
| 13 | 390 | 390 |
| 14 | 390 | 2730 |
| 15 | 390 | 390 |
| 16 | 390 | 3120 |
| 17 | 390 | 6630 |
| 18 | 390 | 1170 |
| 19 | 390 | 7410 |
| 20 | 390 | 780 |
| 21 | 390 | 2730 |
| 22 | 390 | 4290 |
| 23 | 390 | 8970 |
| 24 | 390 | 1560 |
| 25 | 390 | 1950 |
| 26 | 390 | 390 |
| 27 | 390 | 3510 |
| 28 | 390 | 5460 |
| 29 | 390 | 11310 |
| 30 | 390 | 390 |
About "Least Common Multiple" Calculator
Least Common Multiple (LCM) also known as the Lowest Common Multiple or Smallest Common Multiple of 2 numbers - it is the smallest positive integer that is divisible by both numbers