39
1, 3, 13, 39
9 and 13 both go into 117.
16 and 13 both go into any multiple of 208 .
13 times 11 = 143.So they both go into any integral multiple of 143.
If you know that 13 is prime, then you know that the number 1 can go into it. Factors : 1 ( Of Course ) , & 13. Is Its Factors. If The Number 13 Has An Even Number Then You Know That 2 Should Go Into 13. (2,4,6,8, and 0) If The Number 13 Has Two Zeros ( 00 )s At The End Then 4 Can Go Into It. (00) or (4) If The Number 13 Has A Zero(0) Or (5) At The End Then 5 Can Go Into It. If The Numbers 2 & 3 (BOTH) Go Into 13 Then 6 Can Automatically Go Into 13. If It Ends With A ( 0 ) Then 10 Can Go Into It.
No.
The LCM of both numbers is 156
No 13 is prime.
13 is a prime number so only 13 and one can go into it
Divide both the 3 and the 39 by 3 to get 1/13 (1 over 13).
39 ÷ 3 = 13