Datrys 1*3+3*5+5*7++35*37+37*39div39*41

$$1 \times 3 + 3 \times 5 + 5 \times 7 + + 35 \times 37 + 37 \times 39 \div 39 \times 41$$

Enrhifo

$$2865$$

Camau Ateb

Lluosi 1 a 3 i gael 3. Lluosi 3 a 5 i gael 15. Lluosi 5 a 7 i gael 35. Lluosi 35 a 37 i gael 1295.

$$3+15+35+1295+\frac{37\times 39}{39}\times 41$$

Adio 3 a 15 i gael 18.

$$18+35+1295+\frac{37\times 39}{39}\times 41$$

Adio 18 a 35 i gael 53.

$$53+1295+\frac{37\times 39}{39}\times 41$$

Adio 53 a 1295 i gael 1348.

$$1348+\frac{37\times 39}{39}\times 41$$

Canslo 39 a 39.

$$1348+37\times 41$$

Lluosi 37 a 41 i gael 1517.

$$1348+1517$$

Adio 1348 a 1517 i gael 2865.

$$2865$$

Ffactor

$$3\times 5\times 191$$