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, 30)

A = 12

B = 30

Sum	42
Difference	18
A × B	360
A ÷ B	0.4
B ÷ A	2.5
GCD	6
LCM	60
Average	21

Combination

86493225

\[ {}_{ 30 } C_{ 12 } = 86493225 \]

Sum of squares

1044

\[ 12^2 + 30^2 = 1044 \]

Norm

$\sqrt{ 12^2 + 30^2 } = 32.31098884280702$

Geometric mean

18.973665961010276

(12, 30) is amicable?

Stirling number of the first kind

\[ S(12,\ 30) = 0 \]

Stirling number of the second kind

\[ S(12,\ 30) = 0 \]

Properties of 12 and 30

Properties of 12 and 30: The GCD and LCM of 12 and 30 are 6 and 60 respectively. 12 + 30 = 42, |12 - 30| = 18, 12 * 30 = 360, 12 / 30 = 0.4, 30 / 12 = 2.5. The average of 12 and 30 is 21 and the norm of them is 32.31098884280702. The geometric mean of two numbers is 18.973665961010276.