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, 15)

A = 12

B = 15

Sum 27
Difference 3
A × B 180
A ÷ B 0.8
B ÷ A 1.25
GCD 3
LCM 60
Average 13.5

Combination

455

\[ {}_{ 15 } C_{ 12 } = 455 \]

Sum of squares

369

\[ 12^2 + 15^2 = 369 \]

Norm

$\sqrt{ 12^2 + 15^2 } = 19.209372712298546$

Geometric mean

13.416407864998739

(12, 15) is amicable?

No

Stirling number of the first kind

0

\[ S(12,\ 15) = 0 \]

Stirling number of the second kind

0

\[ S(12,\ 15) = 0 \]

Jacobi symbol

0

\[ \left(\dfrac{ 12 }{ 15 }\right) = 0 \]

Properties of 12 and 15

Properties of 12 and 15: The GCD and LCM of 12 and 15 are 3 and 60 respectively. 12 + 15 = 27, |12 - 15| = 3, 12 * 15 = 180, 12 / 15 = 0.8, 15 / 12 = 1.25. The average of 12 and 15 is 13.5 and the norm of them is 19.209372712298546. The geometric mean of two numbers is 13.416407864998739.

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