15
The triangle number of 13 can be calculated using the formula n(n+1)/2, where n is the number you are finding the triangle number of. In this case, n is 13. Plugging 13 into the formula, we get 13(13+1)/2 = 13(14)/2 = 182/2 = 91. Therefore, the triangle number of 13 is 91.
To write 13/2 as a mixed number, divide 13 by 2. The answer is 6 1/2.
The number you are looking for is 13. The other factor is 2, but 2 is even, so 13 is the only possibility. 52=13*2*2
To add to 13 with 2 even and 1 odd number, can do 1+4+8=13
Just the number 1 - because 13 is a prime number.
11/13
Number 676 Factorization: 2*2*13*13
no 2 and 4 aren't factors of 13. 13 is a prime number.
13 = 13 is a prime number 52 = 2 x 2 x 13
An even number can be divided by 2 evenly. An odd number will have a remainder of 1 when divided by 2. 13 is an odd number.
15
if the number is the same: 2x + 3x = 13 5x = 13 x= 13/5