Check the properties of a positive integer to enter the number in the search box. If you input two numbers separated by a space, the properties of the pair like GCD are shown. If you separate two numbers by a comma, the sequences containing those numbers are listed.

(12, 18)

A = 12

B = 18

Sum	30
Difference	6
A × B	216
A ÷ B	0.6666666666666666
B ÷ A	1.5
GCD	6
LCM	36
Average	15

Combination

18564

\[ {}_{ 18 } C_{ 12 } = 18564 \]

Sum of squares

468

\[ 12^2 + 18^2 = 468 \]

Norm

$\sqrt{ 12^2 + 18^2 } = 21.633307652783937$

Geometric mean

14.696938456699069

(12, 18) is amicable?

Stirling number of the first kind

\[ S(12,\ 18) = 0 \]

Stirling number of the second kind

\[ S(12,\ 18) = 0 \]

Properties of 12 and 18

Properties of 12 and 18: The GCD and LCM of 12 and 18 are 6 and 36 respectively. 12 + 18 = 30, |12 - 18| = 6, 12 * 18 = 216, 12 / 18 = 0.6666666666666666, 18 / 12 = 1.5. The average of 12 and 18 is 15 and the norm of them is 21.633307652783937. The geometric mean of two numbers is 14.696938456699069.